Port the BAYESTAR signal amplitude model unit test to Python

This unit test constituted most of the calls to other LALSuite
functions in C.
12 jobs for test-bayestar-signal-amplitude-model-in-python in 36 minutes and 59 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Level0
passed #17100
level0:lal

00:04:40

 
  Level1
passed #17101
level1:lalframe

00:01:41

passed #17102
level1:lalmetaio

00:01:38

passed #17103
level1:lalsimulation

00:06:18

passed #17104
level1:lalxml

00:01:10

 
  Level2
passed #17105
level2:lalburst

00:02:30

passed #17106
level2:lalinspiral

00:04:56

passed #17107
level2:lalpulsar

00:03:31

passed #17108
level2:lalstochastic

00:01:49

 
  Level3
passed #17109
level3:laldetchar

00:02:28

passed #17110
level3:lalinference

00:11:17

 
  Level4
passed #17111
level4:lalapps

00:09:44