RFR: 282: Make the review requirements more explicit in the progress list

[Guoxiong Li]

Hi all,

This patch adds the explicit review requirements, such as ` (2 reviews required, with at least 1 Reviewer).`, to the progress list and adds some test cases.

Thanks for taking the time to review.

Best Regards,
-- Guoxiong

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Commit messages:
 - 282: Make the review requirements more explicit in the progress list

Changes: https://git.openjdk.java.net/skara/pull/1305/files
 Webrev: https://webrevs.openjdk.java.net/?repo=skara&pr=1305&range=00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-282
  Stats: 166 lines in 3 files changed: 153 ins; 0 del; 13 mod
  Patch: https://git.openjdk.java.net/skara/pull/1305.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/1305/head:pull/1305

PR: https://git.openjdk.java.net/skara/pull/1305