clang-format

[RobLoach]

Add a clang-format definition file, and apply its coding standards.

[furudbat]

I was literally in the process of adding an .clang-format for my own fork.

• try to keep the current format
• respecting raylib (Name Conventions, etc.)

It needs a bit more fine tuning,
but having an format file and living with it's decision is better then having no file and chaos.

(I personally don't care about formatting, I just run the formatter and learn to read the code)

[furudbat]

I would also recommend adding an .clang-tidy and .cmake-format.yaml file.

[RobLoach]

Sounds good with me. Thanks a lot.

[RobLoach]

Here's one that I used on another project. Not sure how well it appllies here tho https://github.com/RobLoach/nuklear_console/blob/master/.clang-format