Happy new year to the wonderful Godot community!
We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.
Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
Add some sanity checks according to bmp specification.
Read color table and index data within the same scope and
then simply extend the color palette.
This particular implementation has one limitation: not all 4/1 bit images
can be imported as it requires bit unpacking (size dimensions must be
a multiple of 8 for 1-bit and 2 (even) for 4-bit images).
This allows more consistency in the manner we include core headers,
where previously there would be a mix of absolute, relative and
include path-dependent includes.
