Adds test to verify parameter functions can be added and run

- Adds better exception logging for retrieve and CM operations.
- Adds test for data process/data process definition management of
  parameter functions.
  - Fully functioning!
- Promotes test_append_parameter to INT test
- Small tweaks to data processing to get the test to work: add
  association and typo
Updates coverage model submodule
Merge pull request #1763 from lukecampbell/pfuncs

CIDEVSTC-278 - Adds test to verify parameter functions can be added and run