BullyGB v1.2

Changelog:

• Added blargg-like ASCII output on SB register ($FF01)
• Added unused IO Register test case
• Added uninitialized RAM test
• Size-optimizations on undocumented CGB reg test

BullyGB v1.1

Changelog:

• Added compatibility for CGB Functionality Tests
• Added (WIP) DIV test case
• Added Undocumented CGB Registers test case

BullyGB v1.0

Changelog:

• Implemented basic testing framework
• Added "RST $FF" general-purpose crash handler
• Added model detection and model-compatibility flags for test cases
• Added Echo RAM test case
• Added BOOT Register test case
• Added OAM DMA Bus Conflict test case
• Added Initial VRAM Check test case