GCBASIC Code

Small compiler improvements:
- More descriptive error message when subroutine is too large on chips with 2048 word pages.
- More descriptive error message when trying to append an integer to a string
- Improved handling of :

Fix for schmitt trigger issue in LCD.h

Preferences editing tool now has a cow icon

GCGB Preferences window is now resizable

Adding Nextion driver support

Updated licence only. No functional changes

Updated Programmer Editor to run in single instance mode

Adjustments to GCGB Preferences dialog for Programmer Editor use

Update of DAT files prior to release

Update of DAT files prior to release