erp5_computer_immobilisation: create Compute Node/Partition portal types

These are clone of Computer and Computer Partition, but used for virtual
computing devices, unrelated to physical hardware.
6 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

00:37:08

passed ERP5.PerformanceTest-Master

00:24:26

failed ERP5.UnitTest-Master

01:29:15

failed ERP5.UnitTest-Master.Medusa

01:54:50

passed SlapOS.Eggs.UnitTest-Master.Python2

00:11:46

passed SlapOS.Eggs.UnitTest-Master.Python3

00:33:48