Use internal disassembler

[SkyLined]

BugId currently relies on cdb.exe to disassemble code. Because I'd like to stop using the closed-source and sometimes buggy cdb.exe in favor of open-source alternatives (so I can fix any bugs I encounter), I will need to find an alternative disassembler.

distorm (https://github.com/gdabah/distorm) is probably the best option for this.