Fix RQNameTranslator to redirect unversioned DLL

Don't use RQNode before the type initializer runs
Refactor language APIs into ISymbolResolver
Fix formatting settings
Tests: Move actual test cases to Tests folder
Move basic resolver types to unversioned DLL

In preparation for classes that inherit types
in unversioned VS DLLs.

Because the unversioned DLL is not a MEF DLL,
I can add an AssemblyResolve handler before
its types are loaded.
Add VB resolver

Includes complete implementation with unit tests.

The syntax visitor doesn't work in all cases.
Fix VB test cases

Make sure search strings are unique
Fix VB syntax crawler

Crawl more node types properly
Fix event & enum member names