[Debug] uinspect dynamic frame walk

[leonardt]

See #1189 for some context, we may want to pass to uinspect a set of files to skip when walking up for the original source frame that performed the wiring or instance action. The alternative is to statically provide the number of frames in the internal magma code. I think the latter option is more performant and similar, but we will need to track and find any cases where the reported frame number is current incorrect (e.g. pointing to some internal magma code instead of the user). If the number of cases becomes to large to handle, then the dynamic frame walk will likely be a better option.