In /emu_65c02 implement a chice of *.bin, *.a2bin or *.ihx load format, in /loader...

In /emu_65c02 implement a chice of *.bin, *.a2bin or *.ihx load format, in /loader implement a2_load.py which converts *.a2bin to *.ihx by running the embedded loader under emulation until a specified starting location, in /text implement dhr2hex.py which converts a *.dhr file into a *.ihx file which loads the main and aux screens via extended linear addresses recognized by the emulator, in /disasm add a forgotten update to star_blazer.asm.patch, change most *.bin to *.a2bin