Improve RAT Testing Coverage

[DrPaulSharp]

We need to write tests for the following files, listed in order of importance:

• RAT.API.RAT Added tests of RAT API and reflectivity calculations #44
• RAT.API.RAT_main Added tests of RAT API and reflectivity calculations #44
• RAT.API.singleCalculation Added tests of RAT API and reflectivity calculations #44
• RAT.targetFunctions.reflectivity_calculation_wrapper Added tests of RAT API and reflectivity calculations #44
• RAT.API.RATParseOutToProjectClass Added tests of RAT API and reflectivity calculations #44
• RAT.API.RatParseClassToStructs_new Added tests of RAT API and reflectivity calculations #44
• RAT.API.parseResulttoStruct Added tests of RAT API and reflectivity calculations #44
• RAT.API.outputFcn.ratSendTextOutput removed in Reorganises code, removing unnecessary files and function arguments #171
• RAT.utilities.textProgressBar Add progress event #210
• RAT.targetFunctions.common.loopCppCustlayWrapper.loopCppCustLayWrapper_CustLaycontrast - Routine removed in New custom models branch #116
• RAT.targetFunctions.common.loopCppCustlayWrapper.loopCppCustLayWrapper_CustLaypoints - Routine removed in New custom models branch #116
• RAT.targetFunctions.common.loopCppCustlayWrapper.loopCppCustLayWrapper_CustLaysingle - Routine removed in New custom models branch #116
• RAT.targetFunctions.common.loopCppCustlayWrapper.loopCppCustLayWrapper_XYContrasts - Routine removed in New custom models branch #116
• RAT.targetFunctions.common.loopCppCustlayWrapper.loopCppCustLayWrapper_XYPoints - Routine removed in New custom models branch #116
• RAT.targetFunctions.common.loopCppCustlayWrapper.loopCppCustLayWrapper_XYSingle - Routine removed in New custom models branch #116
• RAT.targetFunctions.standardTF.standardTF_stanLay.standardTF_stanLay_paraAll - Routine not called by RAT
• RAT.targetFunctions.standardTF.standardTF_stanLay.standardTF_stanLay_paraContrasts Added further tests for reflectivity calculations #45
• RAT.targetFunctions.standardTF.standardTF_stanLay.standardTF_stanLay_paraSingle Added further tests for reflectivity calculations #45
• RAT.targetFunctions.standardTF.standardTF_stanLay.standardTF_stanLay_single Added further tests for reflectivity calculations #45
• RAT.targetFunctions.common.Resolution_Functions.Simple_Gaussian.data_resolution_poly - Routine removed in Refactors resolutions to fully incorporate data resolutions #315
• RAT.targetFunctions.common.callCustomLayers.call_customLayers - Routine removed in New custom models branch #116
• RAT.targetFunctions.common.callMatlabCustomLayers.callMatlabCustomLayers Added further tests for reflectivity calculations #45
• RAT.API.outputFcn.ratOutputClass - Routine removed in Refactors compile folder #164
• RAT.API.outputFcn.SpecialEventDataClass - Routine removed in Refactors compile folder #164
• RAT.API.outputFcn.defaultRatOutputFunction - Routine removed in Refactors compile folder #164
• RAT.API.projectClass.contrastsClass Adds tests and docs to the contrasts class #88
• RAT.API.projectClass.mergeStructs Added tests for mergeStructs #177

Then, improve test coverage for the following files, listed in order of importance:

• RAT.API.projectClass.dataClass Refactors and adds tests for the data class #76
• RAT.API.projectClass.layersClass_realSLD Refactored, added tests and docs to layers table class #57
• RAT.API.projectClass.resolutionsClass Adds test for the resolution class and updates docs #86
• RAT.API.projectClass.customFileClass Added tests and docs to custom file class #59
• RAT.API.projectClass.projectClass Adds more tests for Project class #46
• RAT.API.projectClass.backgroundsClass Adds tests for background class #94
• RAT.API.projectClass.parametersClass Adds tests and improves docs for the parameter class #48
• RAT.API.projectClass.multiTypeTable Adds tests for multiTypeTable #50
• RAT.targetFunctions.common.loopMatlabCustomLayers.mexCompile.loopMatlabCustomLayers - Routine removed in New custom models branch #116
• RAT.targetFunctions.common.loopMatlabCustomLayers.mexCompile.loopMatlabCustomLayers_points - Routine removed in New custom models branch #116
• RAT.targetFunctions.common.loopMatlabCustomLayers.mexCompile.loopMatlabCustomLayers_single - Routine removed in New custom models branch #116
• RAT.API.controlsDef.controlsDef Adds tests for the controlsClass and renames some variables #52

Then, the domains class has zero test coverage, but is not called from within RAT:

• RAT.API.domainsClass.domainsClass Removed in Removes domainsClass and domains_TF folders #84
• RAT.API.domainsClass.reflContrastsClass Removed in Removes domainsClass and domains_TF folders #84
• RAT.API.domainsClass.simContrastsClass Removed in Removes domainsClass and domains_TF folders #84