RFR: 7903570: JOL: Clean up CLI tools

[Aleksey Shipilev]

There are tools we do not maintain anymore, for example string-compress and object-shapes. Plus, the descriptions and names for current tools need to be cleaned up.

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Commit messages:
 - Fix

Changes: https://git.openjdk.org/jol/pull/52/files
 Webrev: https://webrevs.openjdk.org/?repo=jol&pr=52&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7903570
  Stats: 718 lines in 12 files changed: 178 ins; 521 del; 19 mod
  Patch: https://git.openjdk.org/jol/pull/52.diff
  Fetch: git fetch https://git.openjdk.org/jol.git pull/52/head:pull/52

PR: https://git.openjdk.org/jol/pull/52