RFR: 8339289: Enhance Attach API to support arbitrary length arguments - Windows [v5]

[Alex Menkov]

> The fix improves Attch API protocol and implements updated protocol on windows; shared code is ready to implement updated protocol support on other platforms.
> More detailed explanations on the 1st comment.
> 
> Testing: tier1,tier2,tier3,tier4,hs-tier5-svc
>   manually tested backward compatibility (old tools can attach to current VMs, current tools can attach to older VMs) on Windows with jdk21u and jdk8u.

Alex Menkov has updated the pull request incrementally with two additional commits since the last revision:

 - renamed getVersion command
 - typos

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/20782/files
  - new: https://git.openjdk.org/jdk/pull/20782/files/86bd1cd2..9e6a34e0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20782&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20782&range=03-04

  Stats: 9 lines in 4 files changed: 0 ins; 0 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/20782.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20782/head:pull/20782

PR: https://git.openjdk.org/jdk/pull/20782