~aleteoryx/lfm_embed

ref: 79999cecedd84e99655fbcdba0bd4e715a22173f lfm_embed/src/theming d---------
Lua support feature-complete

Full implementation of debug mode still pending
lua loading
html.lua functional
Start of Lua support
Add SPDX info to all files
Theming refactor

Theming has been broken off into a seperate space, so that it'll be easier to add lua support later.