[wasm][debugger] Handle multi-doc methods and multiple results for breakpoints (#19449)
* [wasm][debugger] Rework source loading
Add logic to support embedded sources and
add all the documents from multi-doc methods
Add logic to check source hashes against
pdb hash.
* [wasm][debugger] Fix breakpoints on delegates
Only add methods to a source once by RID
When column is != 0 specified the fronted only wants results
that match that column exactly.
* Allow checking pdb hash and remove source cache
* Fixup typesByName merge