RFR: 8292758: put support for UNSIGNED5 format into its own header file [v3]

Sat Sep 3 23:46:41 UTC 2022

> Refactor code from inside of CompressedStream into its own unit.
> 
> This code is likely to be used in future refactorings, such as JDK-8292818 (replace 96-bit representation for field metadata with variable-sized streams).
> 
> Add gtests.

John R Rose has updated the pull request incrementally with one additional commit since the last revision:

  add more support for SA including vmStructs; tweak some debug code

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10067/files
  - new: https://git.openjdk.org/jdk/pull/10067/files/d903f2c7..dc30f7ce

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10067&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10067&range=01-02

  Stats: 346 lines in 6 files changed: 284 ins; 43 del; 19 mod
  Patch: https://git.openjdk.org/jdk/pull/10067.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10067/head:pull/10067

PR: https://git.openjdk.org/jdk/pull/10067