Add support to disassembly-diff for comparing skool file templates
Make write-files write the load, save and start disassembly ASM files
Make analyse-png.py work with Python 3
Make check-diffs.py work with Python 3
Make check-links.py work with Python 3
Make check-asms check the load, save and start ASM files
Compare decimal, upper case and lower case HTML disassemblies