Issue697testsForHighDoseFluoroAlerts

Adding tests for RF high dose alerts. Incomplete and not totally working yet - pipelines will fail [skip ci]. References issue #697

Tests for correct cumulated DAP and dose at RP; tests for correct highlighting of cumulated and non-cumulated DAP and dose at RP. References issue #697

Added tests for the RF detail view. References issue #697

Amended tests after merge of develop that has removed the JavaScript toPrecision function. References issue #697

Moved check strings into self to avoid multiple declarations. References issue #697

Updating changes files [skip ci]. References issue #697