[FEAT] Allow Custom TLS certificate to use with Swag

[wakawakaaa]

Is this a new feature request?

• I have searched the existing issues

Wanted change

When TLS certificates are already available this should be able to use in Swag instead of using and generating from Lets encrypt. TLS certificates will be updated manually and Swag should use it if possible without restart.

Reason for change

TLS certificates in a company are already available needs to be just use it with Swag instead relying on Swag to generate it.

Proposed code change

No response

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[Roxedus]

Certificate generation is 80% of this containers goal, most of the logic happening in the image is based on that.