Change the way geometry tests are done.

Realized that the way geometry tests are done is too data intensive.
Every time the resulting phi files are changed, a lot of changes must
be put into the git repo. Therefore changed the testing to save a checksum
generated by sum, and compare whether that has changed.
Fix bug in cylplot in objplot.f for cylinder plotting.

ism1=0 ism2=0 was wrong, should have been ism1=1 ism2=1