[jdk13u-dev] RFR: 8227080: (fs) Files.newInputStream(...).skip(n) is slow

[Larry-N]

Backport JDK-8227080: (fs) Files.newInputStream(...).skip(n) is slow.
Another bug JDK-8227609 should be backported after this.

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Commit messages:
 - Backport c6c82dd736db6ff96a0f82862e416a9513633cd6

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/210/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=210&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8227080
  Stats: 63 lines in 2 files changed: 56 ins; 2 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/210.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/210/head:pull/210

PR: https://git.openjdk.java.net/jdk13u-dev/pull/210