v0.2.0: Add some table functions

- Add table.pack
- Add table.insert
- Add table.remove
- Add table.sort
- Change ipairs to make it return 3 values, iter, i and v.
- Add Lua and pico8 tests for table.pack, table.insert, table.remove, table.sort and return values for ipairs.
- Add comments to let the user know about getmetatable and rawget dependencies.
- generate_pico8.py now exports missing.lua in 1-space indentation.
- generate_package.py now exports the "table" table.

v0.1.3

Rename toolbelt to missing

v0.1.2: Add background image for template_toolbelt.p8

* Convert to lowercase template_toolbelt.p8
* Lowercase string to replace in generate_pico8.py

v0.1.1

Update README.md to add precision on the license.

First release.

There's two options:

• Either you download toolbelt.lua then copy the file contents into your .p8 project file, preferably before the rest of your code; or
• you load toolbelt.p8 in pico-8 to test it out first.