Fix Calva's escaped URIs rename issue

[ikappaki]

Hi,

can you pelase consider patch for restoring renaming functionality on VS Code/Calva on MS-Widnows. It fixes #1388

The bug was inroduced with #1327, which added special handling for escaped URIs coming from Calva (which unexpectedly even encodes the colon in a drive schema). It introduced a lot of (normalize-doc-uri) inside the request handlers, but it is not obvious whether the rename handler was missed by mistake. Question: what qualifies for handled by (normalize-doc-uri) in the server? It is not obvious to me.

This patch introduces the missing form for the rename handler. A test has also been extended to test the rename function. The escape uri fn has been updated to introduced calva's escaping behavior.

thanks

• I created an issue to discuss the problem I am trying to solve or an open issue already exists.
• I added a new entry to CHANGELOG.md
• I updated documentation if applicable (docs folder)

[ericdallo]

Looks great, thanks again!

[mainej]

Good catch—the rename handler was missed by mistake.