Add seal regression testing support (#1765) #114

Job	Run time
Build with various GPU support enabled	10m 55s
Clippy	2m 35s
Checking fmt	5s
Test on GPUs	11m 56s
Test on GPUs (--ignored)	17m 18s
Test ignored in release mode	3m 28s
Test in release mode on MacOS	52m 28s
Test without default features	10m 30s
Test in release mode	16m 51s
Test in release mode (--features fixed-rows-to-discard)	17m 5s
	2h 23m 11s

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