RFR: 8262742: (fs) Add Path::resolve with varargs string [v7]

[Brian Burkhalter]

> Add to `java.nio.file.Path` methods which allow resolution of multiple descendants.

Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:

  8262742: Add some cases to the test

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Changes:
  - all: https://git.openjdk.org/jdk/pull/14805/files
  - new: https://git.openjdk.org/jdk/pull/14805/files/0fa126fd..505d72b4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14805&range=06
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14805&range=05-06

  Stats: 12 lines in 1 file changed: 11 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/14805.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14805/head:pull/14805

PR: https://git.openjdk.org/jdk/pull/14805