RFR: 7569: Improve the implementation of Twitter plugin [v2]

[Suchita Chaturvedi]

> Modified the Twitter plugin implementation a bit for a better approach.

Suchita Chaturvedi has updated the pull request incrementally with one additional commit since the last revision:

  Added missing files

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Changes:
  - all: https://git.openjdk.java.net/jmc/pull/384/files
  - new: https://git.openjdk.java.net/jmc/pull/384/files/f3eaa0c8..f541fd1a

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jmc&pr=384&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jmc&pr=384&range=00-01

  Stats: 4 lines in 2 files changed: 2 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jmc/pull/384.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/384/head:pull/384

PR: https://git.openjdk.java.net/jmc/pull/384