Add excludedpath(s) option to exclude processes/assemblies in named folders

[sawilde]

Rather than add path support to filters (making it overly complex) we should instead remove the path support from filters (introduced to support Smocks #364) which had a knock on affect and introduced defect #512, now resolved by reverting part (but not all) of the change for Smocks.

Tasks:

• remove path support from filters (reverting)
• add new arg -excludedpaths:path[;path][;path] (same syntax as -searchdirs)
• integrate excludedpaths into ProfilerCommunication::TrackAssembly using the supplied modulePath to check against (startswith?)
• we should also add and use a new skip reason (ExcludedFolder?) and ensure it is processed in BasePersistence::ProcessSkippedAction (similar to MissingPdb behaviour)
• update docs

[ddur]

Removing path-matching is high priority but issue #364 is medium, user is not very responsive and Smocks framework is experimental and in alpha status. I think that new feature can wait after Q1 release.