RFR: 8369828: Generalize share/utilities/bytes.hpp

[Justin King]

Implement portable `share/utilities/bytes.hpp` and remove CPU-specific headers.

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Commit messages:
 - Generalize bytes.hpp

Changes: https://git.openjdk.org/jdk/pull/27801/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27801&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8369828
  Stats: 1204 lines in 9 files changed: 229 ins; 973 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/27801.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27801/head:pull/27801

PR: https://git.openjdk.org/jdk/pull/27801