RFR: 8304265: Implementation of Foreign Function and Memory API (Third Preview) [v3]

[Per Minborg]

> API changes for the FFM API (third preview)
> 
> Specdiff:
> https://cr.openjdk.org/~pminborg/panama/21/v1/specdiff/overview-summary.html
> 
> Javadoc:
> https://cr.openjdk.org/~pminborg/panama/21/v1/javadoc/java.base/module-summary.html

Per Minborg has updated the pull request incrementally with one additional commit since the last revision:

  Remove MemoryInspection classes

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/13079/files
  - new: https://git.openjdk.org/jdk/pull/13079/files/7a78948a..a71518c4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13079&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13079&range=01-02

  Stats: 684 lines in 3 files changed: 0 ins; 684 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/13079.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13079/head:pull/13079

PR: https://git.openjdk.org/jdk/pull/13079