Create python package

[Xiretza]

This is quite a big one, so it probably makes sense to review it commit-by-commit (there shouldn't be any overlap).

Summarized:

• The etebase_fastapi module was moved to etebase_server.fastapi
• The myauth module was moved to etebase_server.myauth
• The django_etebase module was moved to etebase_server.django
• The templates/ directory was moved into etebase_server/
• A setup.py was added to allow packaging the etebase_server module as a python package.

[tasn]

There's a conflict. The main question though, before I review it: why do we want it to work as a python package? Is this people will actually use?

[Xiretza]

I would think so. Not only would it allow using pip install https://github.com/etesync/server (or even pip install etebase_server if it's pushed to pypi), it also makes distro packaging a lot easier because it can be handled like any other python package.

[tasn]

Cool, that's fair. OK. Will review this once we review and merge all the others as I don't want any conflicts here.

[Xiretza]

Rebased.

[tasn]

Merged, thanks a lot! Please take extra care testing it to make sure we didn't break anything, though it looks good for all I can see.