[Rev 03] RFR: 6549: Color flame chart based on package name

[Miroslav Wengner]

> implemented ticket : https://bugs.openjdk.java.net/browse/JMC-6549
> additionally:
> 1. fixed issue with displaying big data set in flameview
> 2. improved display speed
> 
> comments:  cell coloring algorithm is based on packageName hash with defined depth to avoid collisions and guarantee same stripPackageName color.
> conclusion: the flameview is always displayed

The pull request has been updated with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.

-------------

Added commits:
 - 9970ca65: Merge branch 'master' of https://github.com/openjdk/jmc into feature/JMC_6549_color_flame_chart_based_packagename
 - 0f08461f: 5721: Reintroduce the Percentage column

Changes:
  - all: https://git.openjdk.java.net/jmc/pull/29/files
  - new: https://git.openjdk.java.net/jmc/pull/29/files/daf8a309..9970ca65

Webrevs:
 - full: https://webrevs.openjdk.java.net/jmc/29/webrev.03
 - incr: https://webrevs.openjdk.java.net/jmc/29/webrev.02-03

  Stats: 23 lines in 5 files changed: 16 ins; 0 del; 7 mod
  Patch: https://git.openjdk.java.net/jmc/pull/29.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/29/head:pull/29

PR: https://git.openjdk.java.net/jmc/pull/29