RFR: 7831: Add new view for hierarchical edge bundling [v7]

[Brice Dutheil]

> Joint effort with @cimi to provide _hierarchical edge_ visualization to JMC.
> 
> ![Hierarchical Edge view](https://user-images.githubusercontent.com/803621/176186654-04f458f5-6f7d-4755-822c-f63e53ccfc31.png)
> 
> Here when the mouse hovers `java.util.concurrent` on the bottom right. One can see the relations with other packages.
> 
> 
> Based on the preliminary work of @cimi here : https://observablehq.com/@cimi/jfr-graph-hierarchical-edge-bundling

Brice Dutheil has updated the pull request incrementally with two additional commits since the last revision:

 - Make chord diagram default dependency view
 - Add warning banner showing hidden edges on chord diagram

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

Changes:
  - all: https://git.openjdk.org/jmc/pull/405/files
  - new: https://git.openjdk.org/jmc/pull/405/files/d90aa65d..7e8dc2d6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jmc&pr=405&range=06
 - incr: https://webrevs.openjdk.org/?repo=jmc&pr=405&range=05-06

  Stats: 53 lines in 3 files changed: 45 ins; 2 del; 6 mod
  Patch: https://git.openjdk.org/jmc/pull/405.diff
  Fetch: git fetch https://git.openjdk.org/jmc pull/405/head:pull/405

PR: https://git.openjdk.org/jmc/pull/405