Merge pull request #882 from Slayer366/main

Add license files for Tile World

ports/tileworld/tileworld/licenses/LICENSE.FLAC.txt

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+License
+
+FLAC is a free codec in the fullest sense. 
+This page explicitly states all that you may do with the format and software.
+
+The FLAC and Ogg FLAC formats themselves, and their specifications, are fully open to the public to be used for any purpose (the FLAC project reserves the right to set the FLAC specification and certify compliance). 
+They are free for commercial or noncommercial use. 
+That means that commercial developers may independently write FLAC or Ogg FLAC software which is compatible with the specifications for no charge and without restrictions of any kind. 
+There are no licensing fees or royalties of any kind for use of the formats or their specifications, or for distributing, selling, or streaming media in the FLAC or Ogg FLAC formats.
+
+The FLAC project also makes available software that implements the formats, which is distributed according to Open Source licenses as follows:
+
+The reference implementation libraries are licensed under the New BSD License. 
+In simple terms, these libraries may be used by any application, Open or proprietary, linked or incorporated in whole, so long as acknowledgement is made to Xiph.org Foundation when using the source code in whole or in derived works. 
+The Xiph License is free enough that the libraries have been used in commercial products to implement FLAC, including in the firmware of hardware devices where other Open Source licenses can be problematic. 
+In the source code these libraries are called libFLAC and libFLAC++.
+
+The rest of the software that the FLAC project provides is licensed under the GNU General Public License (GPL). 
+This software includes various utilities for converting files to and from FLAC format, plugins for audio players, et cetera. 
+In general, the GPL allows redistribution as long as derived works are also made available in source code form according to compatible terms.
+
+Neither the FLAC nor Ogg FLAC formats nor any of the implemented encoding/decoding methods are covered by any known patent.
+
+FLAC is one of a family of codecs of the Xiph.org Foundation, all created according to the same free ideals. 
+For some other codecs' descriptions of the Xiph License see the Speex and Vorbis license pages.
+
+If you would like to redistribute parts or all of FLAC under different terms, contact the FLAC-dev mailinglist.
+Copyright (c) 2000-2009 Josh Coalson, 2011-2022 Xiph.Org Foundation

ports/tileworld/tileworld/licenses/LICENSE.SDL_gfx.txt

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+Copyright:
+  Copyright (C) 2001-2011 Andreas Schiffler <aschiffler at ferzkopp dot net>
+
+License:
+
+  This library is available under the zlib/libpng license:
+
+  This software is provided 'as-is', without any express or implied
+  warranty. In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+   1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required.
+
+   2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.
+
+   3. This notice may not be removed or altered from any source
+   distribution.

ports/tileworld/tileworld/licenses/LICENSE.SDL_image.txt

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+This library is distributed under the terms of the zlib license:
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+The source is available from the SDL website:
+http://www.libsdl.org/projects/SDL_image

ports/tileworld/tileworld/licenses/LICENSE.SDL_mixer.txt

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+This library is distributed under the terms of the zlib license:
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+The source is available from the SDL website:
+http://www.libsdl.org/projects/SDL_mixer