Allow hash character in paths

Instead file:${...} we need to use pathToFileURL (from node:url) because some paths can contain hash character (#) or other characters (I guess, question mark (?) could also be a problem) that are cut off when the URI (file: schema) points file to be accessed by file system.

The file:${...} instances would need replacing hash character (#) with its URI encoded value (%23) to prevent it being reparsed along the way. My previous idea of using pathToFileURL wouldn't work, as relative paths got pre-resolved before converting to URL, i.e. file:../hello with CWD of S:\\test\\directory would became file://S:\\test\\hello while some instances of code (NPA) expected not unresolved file:..\\hello. Aside of that, simply replacing the char would be faster. By the way, I am almost certain that the hash character is the only "weird" character that could be used in the paths, as question mark (despite being beginning of query params) hardly can't nor should be used for names (Windows disallows).

References

Fixes #5120

Pending work

• Check other places where file: was used and if similar patch could be applied.