RFR: 8300236: Use VarHandle access in Data(Input | Output)Stream classes

[Per Minborg]

This PR proposes using a performance optimization using a new supported API for operations similar to those found in `java.io.Bits`

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Commit messages:
 - Remove white spaces
 - Remove white space
 - Fix jcheck issues
 - Update copyright years
 - Reformat javadoc
 - Prepare for review
 - Fix typo
 - Rename methods and parameters
 - Recompose classes and methods
 - Rework BigEndianAtZeroBuffer
 - ... and 2 more: https://git.openjdk.org/jdk/compare/4cd166ff...ce1d5765

Changes: https://git.openjdk.org/jdk/pull/12076/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12076&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8300236
  Stats: 1939 lines in 11 files changed: 1281 ins; 560 del; 98 mod
  Patch: https://git.openjdk.org/jdk/pull/12076.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12076/head:pull/12076

PR: https://git.openjdk.org/jdk/pull/12076