Restructure unit/e2e tests directory strucures 

fixes #89 

As described from the angularjs team at https://docs.google.com/document/d/1XXMvReO8-Awi1EZXAXS4PzDzdNvV6pGcuaF4Q9821Es/pub
this is addressed at https://github.com/28msec/nolap-report-editor/pull/114/files#diff-9e64145b95c95099aa0bd0b659aa2bd6R13