Adds graph editing

[VEZY]

Now that we have graph visualization, this is the logical next step: edit the graph interactively

[github-actions]

Benchmark Results (Julia v1)

Time benchmarks

	main	67c7e84...	main / 67c7e84...
bench_linux/PBP	15.4 ± 1.1 ms	17 ± 1.6 ms	0.91 ± 0.11
bench_linux/PBP_multiple_timesteps_MT	0.24 ± 0.025 s	0.24 ± 0.03 s	1 ± 0.16
bench_linux/PBP_multiple_timesteps_ST	0.234 ± 0.02 s	0.233 ± 0.022 s	1.01 ± 0.13
bench_linux/PSE	5.89 s	5.96 s	0.987
bench_linux/PSE_multirate_output_request_run	7.73 s	7.48 s	1.03
bench_linux/PSE_multirate_status_tracked_run	4.21 ± 0.43 s	4.12 ± 0.61 s	1.02 ± 0.18
bench_linux/XPalm_convert_outputs	0.943 ± 0.057 s	0.91 ± 0.054 s	1.04 ± 0.088
bench_linux/XPalm_run	11.7 s	11.4 s	1.02
bench_linux/XPalm_setup	0.993 ± 0.13 s	0.959 ± 0.13 s	1.04 ± 0.2
time_to_load	2.16 ± 0.031 s	2.18 ± 0.028 s	0.989 ± 0.019

Memory benchmarks

	main	67c7e84...	main / 67c7e84...
bench_linux/PBP	0.12 M allocs: 7.2 MB	0.131 M allocs: 8.11 MB	0.888
bench_linux/PBP_multiple_timesteps_MT	3.73 M allocs: 0.237 GB	3.73 M allocs: 0.237 GB	1
bench_linux/PBP_multiple_timesteps_ST	3.58 M allocs: 0.213 GB	3.58 M allocs: 0.213 GB	1
bench_linux/PSE	0.0499 G allocs: 3.7 GB	0.0499 G allocs: 3.7 GB	1
bench_linux/PSE_multirate_output_request_run	0.0851 G allocs: 3.5 GB	0.0851 G allocs: 3.5 GB	1
bench_linux/PSE_multirate_status_tracked_run	0.0607 G allocs: 1.93 GB	0.0607 G allocs: 1.93 GB	1
bench_linux/XPalm_convert_outputs	6.62 M allocs: 0.436 GB	6.62 M allocs: 0.436 GB	1
bench_linux/XPalm_run	0.104 G allocs: 6.68 GB	0.104 G allocs: 6.69 GB	0.998
bench_linux/XPalm_setup	0.517 M allocs: 26.4 MB	0.325 M allocs: 17.3 MB	1.52
time_to_load	0.149 k allocs: 11.1 kB	0.149 k allocs: 11.1 kB	1