RFR: 8340205: Native linker allows MemoryLayout consisting of only PaddingLayout [v3]

[Per Minborg]

> This PR prevents sequence layout with padding to be used with the Linker.

Per Minborg has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains nine additional commits since the last revision:

 - Add specific message for group layouts with only padding layouts
 - Merge branch 'master' into linker-padding-layout-only
 - Check exception message
 - Remove redundant doc section
 - Merge branch 'master' into linker-padding-layout-only
 - Improve excception message
 - Document a sequence layout cannot contain a padding layout
 - Update copyright year
 - Prevent embeded only padding layout in linker

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21041/files
  - new: https://git.openjdk.org/jdk/pull/21041/files/d0575fd7..78d38efa

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21041&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21041&range=01-02

  Stats: 1699 lines in 59 files changed: 1210 ins; 252 del; 237 mod
  Patch: https://git.openjdk.org/jdk/pull/21041.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21041/head:pull/21041

PR: https://git.openjdk.org/jdk/pull/21041