Integrate generic utilities from Cyberpunk framework

[czyzby]

Cyberpunk is an opinionated Kotlin LibGDX framework that aims to be on a little higher abstraction level than KTX. Some of its utilities are generic enough to make it into KTX. In particular, we should look into:

• Screenshot utilities.
• Profiling.
• Camera utilities.
• Image and text helpers.
• Refactoring and addressing feedback (see comments below).

See ImXico/cyberpunk#14. @ImXico

[czyzby]

@ImXico I finally got around to move some utilities from Cyberpunk to KTX. I credited you in the contributors file, I hope that's OK. Thanks again!