RFR: 8308591: JLine as the default Console provider

[Naoto Sato]

This is to bring the JLine-based Console implementation as the default, which was the initial intention in [JDK-8295803](https://bugs.openjdk.org/browse/JDK-8295803). A corresponding CSR has also been drafted.

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Commit messages:
 - javadoc cleanup
 - Merge branch 'master' into JDK-8308591-JLine-Console
 - Merge branch 'master' into JDK-8308591-JLine-Console
 - static to instance method
 - isPlatformConsole()
 - Restored stream
 - lazy init
 - Avoid using stream
 - test fix
 - Make jdk.internal.le the default console module

Changes: https://git.openjdk.org/jdk/pull/14271/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14271&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8308591
  Stats: 66 lines in 5 files changed: 51 ins; 6 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/14271.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14271/head:pull/14271

PR: https://git.openjdk.org/jdk/pull/14271