Adjust exclusion list for profiling and reporting

[lastquestion]

They probably ought to be separate. If the profiler itself is profiled while generating profiles, then the list of profiles will just get filled up with profiles of the profiler. (Read that sentence back again fast!)

• Support profile exclusion list, somewhere around https://github.com/lastquestion/explain-pause-mode/blob/master/explain-pause-mode.el#L310
• Support reporting exclusion list, somewhere around https://github.com/lastquestion/explain-pause-mode/blob/master/explain-pause-mode.el#L336

[lastquestion]

Also, default exclusions should include debugger and break on error and backtrace stuff.