[foreign-memaccess+abi] RFR: 8291639: Improve the ability to visualize a MemorySegment in human readable forms [v2]

[Per Minborg]

> This PR proposes to add a "Record Mapper" that allows `MemorySegment` instances to be projected onto `Record` types given `GroupLayout` instances.
> 
> Here is a simple example of how to use the mapper:
> 
> 
>     private static final GroupLayout POINT_LAYOUT = MemoryLayout.structLayout(
>             JAVA_INT.withName("x"),
>             JAVA_INT.withName("y"));
> 
>     MemorySegment segment =  MemorySegment.ofArray(new int[]{3, 4});
> 
>     Point point = POINT_LAYOUT.recordMapper(Point.class)
>           .apply(segment); // Point[x=3, y=4]
> 
> 
> I think the implementation can be improved later, for example by de-duplicating handling of arrays and maybe add recursive "un-pealing" of multidimensional arrays.

Per Minborg has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 29 commits:

 - Merge master
 - Fix typos
 - Clean up toString methods
 - Add support for MemoryAddress arrays and improve docs
 - Improve javadoc
 - Change to IAE if mapper fails
 - Remove caching
 - Add tests for initial issue examples
 - Clean up and optimize
 - Add support for multidimensional records
 - ... and 19 more: https://git.openjdk.org/panama-foreign/compare/bee4503b...1d7db589

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Changes: https://git.openjdk.org/panama-foreign/pull/833/files
 Webrev: https://webrevs.openjdk.org/?repo=panama-foreign&pr=833&range=01
  Stats: 1955 lines in 7 files changed: 1954 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/panama-foreign/pull/833.diff
  Fetch: git fetch https://git.openjdk.org/panama-foreign.git pull/833/head:pull/833

PR: https://git.openjdk.org/panama-foreign/pull/833