Create charmap.txt

//Purpose:	Program to display the 8-bit character map used by
//          the DUO Light. To be used as quick reference.
//Author:   Richard Collins, aka "rpc0618"
//Version:	1.0, date: 2014-10-03
//Language:	DUO Light Pseudo C, target: dlpcCompiler.py (2014-09-24)