Modernize old templates

[nezuo]

This PR is meant to start a discussion on improvements we can make to the old templates. If anyone disagrees with a change I made, let me know!

Here are the changes I made:

• .gitignore updates:
  • Lock files in all directories are ignored now, instead of only the root directory.
  • The binary format is now ignored for place/model files.
  • The place/model files don't need a specific name to be ignored anymore.
• Added newlines to all the files (except the project files, since rojo fmt-project doesn't add a newline).
• The READMEs now recommend the binary format instead of XML.
• I ran rojo fmt-project on the place project file. I'm not sold on this, the output is a little strange and rojo fmt-project isn't even deterministic.
• I removed the FilteringEnabled property from the place project file since it's always on by default now.
• I renamed the model template to library to better reflect what it does.

[Dekkonot]

I think it's actually probably fine to leave the template as model instead of library. It's the goto alternative to place, so it makes sense to me.

[boatbomber]

Should we update the place to match the new Baseplate of Studio?

[nezuo]

It's a matter of preference but the current template we have has outdated Lighting properties. I think we should update it. Does anyone have any reservations about updating it?