scripts: Add scripts for building and reproducing kas containers #386

Job	Run time
Run tests on kas code (3.6)	1m 54s
Run tests on kas code (3.6)	2m 31s
Run tests on kas code (3.7)	2m 1s
Run tests on kas code (3.7)	2m 32s
Run tests on kas code (3.8)	2m 14s
Run tests on kas code (3.8)	2m 36s
Run tests on kas code (3.9)	1m 50s
Run tests on kas code (3.9)	2m 21s
Run tests on kas code (3.10)	1m 49s
Run tests on kas code (3.10)	2m 41s
Run tests on kas code (3.11)	1m 48s
Run tests on kas code (3.11)	2m 43s
Run tests on kas code (3.12)	2m 3s
Run tests on kas code (3.12)	2m 19s
Build, test and deploy container images (kas)	21m 5s
Build, test and deploy container images (kas)	30m 9s
Build, test and deploy container images (kas-isar)	10m 53s
Build, test and deploy container images (kas-isar)	11m 27s
	1h 44m 56s

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