RFR: 8313452: Improve Classfile API attributes handling safety [v4]

[Adam Sotona]

> This PR improved Classfile API attributes handling safety by introduction of attribute stability indicator
> and by extension of UnknownAttributesOption to more general AttributesProcessingOption.

Adam Sotona has updated the pull request incrementally with one additional commit since the last revision:

  renamed AttributeMapper::attributeStability to stability

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Changes:
  - all: https://git.openjdk.org/jdk/pull/15101/files
  - new: https://git.openjdk.org/jdk/pull/15101/files/392ba560..1105033c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15101&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15101&range=02-03

  Stats: 41 lines in 5 files changed: 0 ins; 0 del; 41 mod
  Patch: https://git.openjdk.org/jdk/pull/15101.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15101/head:pull/15101

PR: https://git.openjdk.org/jdk/pull/15101