Cleanup deprecated/legacy config support

[dacmot]

This issue is to track the deprecation of the config support. See init.lua:

-- Legacy Config Support

and armor.conf.example

-- DEPRECATED, will not be supported in future versions

[Lazerbeak12345]

will the lines like

if armor.materials.crystal then

in the various submodules also be resolved by this issue?

[dacmot]

I would assume so, since armor.conf.example is where the materials are defined, and them imported in init.lua.

I would add that these changes should make the 3d_armor API material agnostic.