Command-line option to disable path length report and rtl map

[matthew-humphrey]

Currently the compiler is producing a <prefix>PathLength.pdrpt and <prefix>RtlMap.json file for each exported class. On Github test runners, these files consume limited disk space and can lead to an out of disk space error.

There is no straightforward way to disable this behavior. Passing the --debug flag to the compiler will disable the path length report, but it has other potentially undesirable consequences. The RTL map is always produced.

There should be a way to disable both of these reports without any other change in compiler behavior.

[matthew-humphrey]

@blakepelton can you weigh in on this and recommend a solution?

[blakepelton]

I don't think general uses have a way to view *.pdrpt files, do they? The RtlMap files are of limited utility to most users. Given these facts, I think it would be fine to disable both outputs.