Add pocketlang

[Thakee Nathees]

Hi, I'd like our language pocketlang to be added to this awesome list.

• Name: pocketlang
• Link: https://github.com/ThakeeNathees/pocketlang
• Implementation: C
• GC: Tracing
• License: MIT
• Notes: A small, fast, and friendly language for scripting and embedding.

Here are some examples on how to embed pocketlang in another application:
https://github.com/ThakeeNathees/pocketlang/tree/master/tests/native/

Thanks!