Moved ImageLoader to ResourceLoader, so that loading is extensible.
i.e. here: Zed image loader now loads up a tileset instead of being a
hacked image loader.
Goal is to support more funky stuff (wad, pak .....)

sdl integration now supports OS character input as per existing in sdl.
Use SetTextInputActive to turn it off/on

All these changes will allow us to more easily add Lol Engine as a
submodule of another Git project.

Using “Array” instead of “array” is now fully deprecated, and I replaced
the Log::Debug() etc. functions with msg::debug() etc. because log:: was
unavailable due to being a maths function.

Added up-to-date copyright notice and BOM to modified files, just in case.

The containers no longer force the user to use the ptrdiff_t type for
size information. For convenience, size() now always returns an int,
and the size_s() method offers a way to handle arrays with more than
2 billion elements. Internally, we still use ptrdiff_t, though.

Since so much code had to be changed, I took the opportunity to get
rid of capitalised accessors for classes that are lowercase.

SDL2: Mouse is back ! With correct focus support
SDL2: Added typing support with keyboard
ShaderBuilder: Refactored and simplified Shader block creation
Several warning removal
Fixed Image::Copy

scene so that g_scene can be deprecated later.

Constants : Added minus one.

core: calling InitGame() at the first tick of an entity. InitDraw is still uncalled yet
fixed mrpigeon and orbital accordingly

handled properly.

- removed 386 CR characters
 - removed 4 trailing whitespaces
 - replaced 189 tabs with spaces