Testing the phi ouput scheme

Add dependencies to the pages job
Some minor bug fixes

More tests for cases where FeatureSpace should fail

Also bug fixes associated with those changes

Step in removing them in general

Now to clean up

Fix bugs from changing API structure

Move on from cpp_sisso as used previously

initialize functions are now working

Remove the treadprivate vectors that caused the valgrind errors
It may not have been an actual leak but don't risk it

Fixed bugs from the merger

see https://gitlab.com/sissopp_developers/sissopp
commits: up to 763e40e4deaf7a45dba3f0d8052cca053c1fa957

Setup to make C++ tests with google_test

Parameters now go down the tree not just the initial feature

merge corrections should now be complete

The sisso tests now work