Added observation facts to test data.

In order to enable testing from rest-api. Copied from ClinicalTestData.
Merge branch 'master' into features/CHERKASY-implement-api-calls
Merge branch 'master' into features/CHERKASY-implement-api-calls
Adds ontology term to TerminalConceptVariable.
[CHERKASY] Changes for observation rest api calls implementation
Remove unused code.
Rename method for retrieving observations
Makes resource service non-transactional, to fix problems with closing.
Includes all ontologyTerms (not only descendants) in clinical variables when retrieving data.
Merge branch 'master' into features/cherkasy-implement-observations-calls2
Adds patients mapping to query result instance (WIP)
Merge pull request #22 from thehyve/features/cherkasy-implement-observations-calls2

Features/cherkasy implement observations calls2
Merge pull request #23 from thehyve/features/CHERKASY-implement-api-calls

Features/cherkasy implement api calls