Add definitions to lua scripts shipped with MQ

[projecteon]

Add lua definitions to the scripts shipped with MQ where it makes sense

Updated and simplified readme

[brainiac]

This isn't the right way to do this. Annotations for actual lua code should be placed in the actual source files.

That means you should be editing the files here: https://github.com/macroquest/macroquest/blob/master/src/plugins/lua/lua/mq

I had previously deleted mq/Icons.lua because it already works without annotations.

The annotation libraries (which is what this repository contains) are needed for things that are external (like 3rd party libraries) and for the things exported from the c++ bindings (like most of the mq and imgui implementations)

[brainiac]

When you do it this way, it just diverges from the actual lua source code when changes are made.

[projecteon]

After talks with @brainiac some of these changes are rewerted with an update to the readme on how to get type defs directly from the MQ source instead:
#38