RFR: 7904026: JOL: Handle (generational) ZGC when dealing with raw addresses [v5]

[Anton Rybochkin]

> Because of color bits in lower positions, object alignment size heuristics does not work with generational ZGC. This PR implements address uncolorizing so alignment size and hence object size is calculated correctly

Anton Rybochkin has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains two new commits since the last revision:

 - Variable name fixed
 - Fixed default alignment on 32-bit platforms

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Changes:
  - all: https://git.openjdk.org/jol/pull/65/files
  - new: https://git.openjdk.org/jol/pull/65/files/b3d7c357..dff94518

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jol&pr=65&range=04
 - incr: https://webrevs.openjdk.org/?repo=jol&pr=65&range=03-04

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jol/pull/65.diff
  Fetch: git fetch https://git.openjdk.org/jol.git pull/65/head:pull/65

PR: https://git.openjdk.org/jol/pull/65