lang/nll: Simple language for programming learning

NLL is a simple language for programming learning

Simple script language for beginners for programming learning.

Complicated sentence structures are abolished and It is designed to understand
if you can go on reading it by a line unit.
Integer arithmetic, character string processing, a floating decimal operation
are possible.
This has text drawing, graphic and sound function and can make simple games.

NLL is one implementation in NLUX of programming language HOBBY.

PR: 244786