missing test file added

frontend-js/testFiles/apiCalls/project/getElements/columns=&id=329168,329173&projectId=sample&token=MOCK_TOKEN_ID&

+[{"formerSymbols":[],"references":[],"modelId":15781,"synonyms":[],"description":"","type":"RNA","name":"s5","bounds":{"x":0.0,"y":118.5,"width":90.0,"height":25.0},"id":329168},{"formerSymbols":[],"references":[],"modelId":15781,"synonyms":[],"description":"description of S1\r\nthird line","type":"Protein","name":"s1","bounds":{"x":12.0,"y":6.0,"width":80.0,"height":40.0},"id":329173}]
\ No newline at end of file