Analysis: (CA1305) Specify IFormatProvider.
Analysis: (CA1725) Param names should match base.
Cleanup: Refactor Helpers / ExtensionMethods dirs

Helper classes & extension methods are now
cleanly divided between these two directories.
LESS: Fix compilation corner cases

Don't crash if no project is open,
or if source maps are disabled.
Analysis: (CA1702) Compound words cased correctly.
Analysis: (CA1720) Identifiers contain type name.
Analysis: (CA1719) Parameter matching member name.
Analysis: (CA1711) Incorrect suffix.
Analysis: (CA1721) Property matching get methods.
Fixed casing issue