feat: adding groomed jet radius and momentum balance variables for softdrop groomed jet #1084

Job	Run time
Format	32s
Wheel: 312, auto64 on ubuntu-latest	7m 42s
Check Python 3.8, auto64 on ubuntu-latest	5m 55s
Wheel: 312, auto64 on macos-13	12m 19s
Check Python 3.8, auto64 on macos-13	6m 58s
Check Python 3.12, auto64 on ubuntu-latest	6m 0s
Check Python 3.12, auto64 on macos-13	8m 35s
pass	0s
	48m 1s

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