Add glob/regex ignore for built in analyzers

[TheAngryByrd]

Currently we have on/off settings for built in analyzers like:

• UnusedOpens.getUnusedOpens
• UnusedDeclarations.getUnusedDeclarations
• SimplifyNames.getSimplifiableNames

It would be nice to be able to keep these on but have a way to customize which files it ignores. This is mostly useful for large generated files that you really do not care about analysis in.

For example it would be good to have an array of globs so you can ignore files like *.g.fs and even specify specific files.

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May be worth to extend this to F# analyzers but might get complicated as we don't have a way to choose for specific F# analyzers as the SDK will just run all loaded analyzers.