Better way to bundle text files

[Vurv78]

Looks like from recent changes, there is now finally a way to bundle text files for workshop addons!

Facepunch/gmad@d55a443
https://wiki.facepunch.com/gmod/Update_Preview_Changelog

Could now potentially move E2 examples into data_static and read from there.

Current method is a super fucked up generated lua file containing JSON data in a comment of all the file names and contents: https://github.com/wiremod/wire/blob/6f8480bd5254aafee70ae7675981d284df6cab2a/lua/wire/default_data_files.lua

Ofc this needs testing, I'm not completely sure this would work yet.

[Vurv78]

• Move tests to a top level tests folder
• Move examples to data_static
• Delete default_data_files