Add test for correct contents of project_stats CSV
Add test for correct contents of project_stats CSV

Our previous project_stats CSV test just checked if it returned OK;
this adds checks that the content itself is reasonable.
It's just a spot-check; doing it this way avoids needing to
add time-travel code to the test setup
(the spot-check should be more than enough).

Signed-off-by: David A. Wheeler <9ae72d22d8b894b865a7a496af4fab6320e6abb2@dwheeler.com>

linuxfoundation/cii-best-practices-badge,jdossett/cii-best-practices-badge,yannickmoy/cii-best-practices-badge,coreinfrastructure/best-practices-badge,coreinfrastructure/best-practices-badge,jdossett/cii-best-practices-badge,yannickmoy/cii-best-practices-badge,coreinfrastructure/best-practices-badge,coreinfrastructure/best-practices-badge,yannickmoy/cii-best-practices-badge,wanganyv/cii-best-practices-badge,jdossett/cii-best-practices-badge,yannickmoy/cii-best-practices-badge,jdossett/cii-best-practices-badge,wanganyv/cii-best-practices-badge,taylorcoursey/cii-best-practices-badge,wanganyv/cii-best-practices-badge,wanganyv/cii-best-practices-badge,taylorcoursey/cii-best-practices-badge,taylorcoursey/cii-best-practices-badge,linuxfoundation/cii-best-practices-badge,linuxfoundation/cii-best-practices-badge,taylorcoursey/cii-best-practices-badge,linuxfoundation/cii-best-practices-badge