[foreign-memaccess+abi] RFR: 8291639: Improve the ability to visualize a MemorySegment in human readable forms [v24]

[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 57 commits:

 - Merge foreign-memaccess+abi
 - Update src/java.base/share/classes/java/lang/foreign/GroupLayout.java
   
   Co-authored-by: ExE Boss <3889017+ExE-Boss at users.noreply.github.com>
 - Change to TypeMapper
 - Use Stream rather than Spliterator
 - Rewrite javadoc
 - Rename benchmark and use standard values
 - Add test for recursive component use
 - Rewrite class doc
 - Clean up code
 - Eliminate duplicate code
 - ... and 47 more: https://git.openjdk.org/panama-foreign/compare/4473ef24...555a15ad

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

Changes: https://git.openjdk.org/panama-foreign/pull/833/files
 Webrev: https://webrevs.openjdk.org/?repo=panama-foreign&pr=833&range=23
  Stats: 2020 lines in 6 files changed: 2020 ins; 0 del; 0 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