FreeViz: Allow setting ratio btw attractive and repulsive forces #2470

Job	Run time
lint	1m 22s
Released (ubuntu-20.04, py3.8)	15m 26s
Released (ubuntu-20.04, py3.9)	18m 35s
Released (ubuntu-20.04, py3.10)	17m 39s
Released (ubuntu-20.04, py3.11)	13m 30s
Latest (ubuntu-20.04, py3.10)	18m 47s
Oldest dependencies (ubuntu-20.04, py3.8)	19m 46s
PyQt6 (ubuntu-20.04, py3.9)	9m 8s
Released (macos-latest, py3.8)	21m 59s
Released (macos-latest, py3.9)	22m 33s
Released (macos-latest, py3.10)	21m 47s
Released (macos-latest, py3.11)	19m 49s
Released (windows-latest, py3.8)	21m 23s
Released (windows-latest, py3.9)	21m 3s
Released (windows-latest, py3.10)	27m 38s
Released (windows-latest, py3.11)	21m 40s
Latest (windows-latest, py3.10)	16m 30s
Latest (macos-latest, py3.10)	22m 39s
PyQt6 (windows-latest, py3.10)	11m 34s
PyQt6 (macos-latest, py3.9)	13m 3s
	5h 55m 51s

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