CTest follow-up: add single-precision tests

[EZoni]

Follow-up on #5068. Run all (if not, a subset of) tests in single-precision, compare against existing double-precision checksum files with a larger tolerance.

[ax3l]

To generalize the analysis scripts, we could change the APIs of the tolerance argument to the checksum API, and pass a dictionary (double and single as keys) for the tolerances. Or have two arguments, one double tolerance one float (with a dictionary, we keep it open to have other types later, but I do not think this is timely.)

Inside the checksum API, we could do a test for WarpX config used or type of a data file entry read to determine if something was a SP or DP run.