tests requiring geochemistry still run when compiling with --disable-geochemistry

[rfiorella]

A handful of regression tests (all the 07-* tests, and many of the 09-* tests) fail when using ctest against ATS binary built with --disable-geochemistry. Presumably these test failures are expected since these would be the tests requiring geochemistry, and so perhaps should be disabled when using --disable-geochemistry in bootstrap.

Occurs both building against master and rfiorella/elm_api (1.4) branches.

(Not sure if this repo or Amanzi is the right place for this issue - let me know if it should be moved).

[ecoon]

Yep, this is a fine place.

Fixing this requires two changes:

1. In amanzi/ats-regression-tests, add a new testsuite for "testing_no_geochemistry" that omits the geochemistry tests.
2. In ats's cmake, there is a call to python regression_tests.py --list-tests --suites=testing which generates the list of tests to add as ctest targets. This would need to be updated to get the right suite based on the boolean ENABLE_GEOCHEMISTRY