[Core] Underlying Memory Arena uses size_t but Clay_CreateArenaWithCapacityAndMemory expects a uint32_t argument

[cugone]

See Title. When building in x64 this will fail without a cast and is potentially error-prone. Changing the argument in Clay_CreateArenaWithCapacityAndMemory to a size_t will allow the compiler to use the correct version of size_t and the cast will no longer be needed.

[nicbarker]

Hello, and great catch! Will get this fixed up immediately.

[nicbarker]

Fixed here: 5571c00

[cugone]

Similarly Clay_MinMemorySize(void) returns a uint32_t but slipping a smaller type into a larger type is okay, it's just me being pedantic.

[Nelarius]

@cugone Noticed the mismatched return type for Clay_MinMemorySize as well, submitted a pr which just explicitly casts the value for now: #317

Agree that using size_t would be more consistent, but this enables compilation with a bunch of warnings enabled for now.