As prior commit, but complete fix for XBox controller and trigger
buttons too.

> The joystick range is a float from -1 through +1. Casting this to int
> yields only three possible values: -1, 0, and 1. This gives a
> misleading joystick placement in the demo.
>
> By casting to int after the multiplication to get pixel values, the
> demo reveals the analog feel of the joystick.

The joystick range is a float from -1 through +1. Casting this to int
yields only three possible values: -1, 0, and 1. This gives a
misleading joystick placement in the demo.

By casting to int after the multiplication, the demo reveals the
analog feel of the joystick.

* Start 2d lights example.

* finish example

* update image.

* Cleanup render textures

* Fixes to handle shadows on edges that are near to the light better.

* tabs

* move to shapes

Co-authored-by: Jeffery Myers <JefMyers@blizzard.com>

* Add panning to raudio and update audio_raw_stream example.

* remove pan smoothing, code formatting changes following pull request comments

Co-authored-by: Ray <raysan5@gmail.com>

Fix typo in link

They were not working

NOTE: New raylib release installer uses `w64devkit`, smaller and more updated than regular `mingw64-w64` default project. Paths are updated properly.

* Add Conway's Game of Life compute shader example.

* Fix various shaders problems, and tune command buffer size.

* Various coding convention changes.

* Add zig buildfile for examples.

- `zig build` to compile all examples
- `zig build [module]` to compile all examples for a module (e.g. `zig build core`)
- `zig build [example]` to compile _and run_ a particular example (e.g. `zig build core_basic_window`)

You can use `-Dtarget=` to compile for a non-native platform, such as
`zig build -Dtarget=x86_64-windows-gnu` to compile from Linux to
Windows.

* Skip pthread example on Windows.

* Select appropriate lib file based on target.