Merge branch 'data_catalog' of github.com:smwesten-usgs/swb into data_catalog

* 'data_catalog' of github.com:smwesten-usgs/swb:
  Last commit added parameters.F90. This commit fleshes out some of the structures in parameters.F90. Goal is to come up with a simple and robust method for centrally managing the parameter values from a set of arbitrary tables.
  Cherry pick parameters module from rock_in_box branch.
  Attempt to generalize data structures within lookup_table_irrigation.