Feat/add circulation model - #3578 #2165

Job	Run time
Build 18.04 package	6m 10s
Build 20.04 package	5m 57s
Build docker image	8m 48s
Python Unittests (bionic-3.8, 3.8, tests)	15m 2s
Python Unittests (bionic-3.8, 3.8, tests_nds)	15m 1s
Python Unittests (focal-3.8, 3.8, tests)	15m 2s
Python Unittests (focal-3.8, 3.8, tests_nds)	14m 59s
Tests E2E 20.04	10m 56s
Tests E2E docker	8m 48s
Publish (on release only)	0s
	1h 40m 43s

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