Implement drone API and physics improvements

See merge request !1711
6 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

01:09:05

passed ERP5.PerformanceTest-Master

00:26:15

failed ERP5.UnitTest-Master

01:50:41

failed ERP5.UnitTest-Master.Medusa

01:56:55

passed SlapOS.Eggs.UnitTest-Master.Python2

00:12:59

passed SlapOS.Eggs.UnitTest-Master.Python3

00:14:59