RFR: 8369828: Generalize share/utilities/bytes.hpp [v4]

[Justin King]

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

Justin King has updated the pull request incrementally with one additional commit since the last revision:

  Remove std::is_trivially_default_constructible
  
  Signed-off-by: Justin King <jcking at google.com>

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Changes:
  - all: https://git.openjdk.org/jdk/pull/27801/files
  - new: https://git.openjdk.org/jdk/pull/27801/files/b5ee743c..d2030a3d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27801&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27801&range=02-03

  Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 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