improved forms and improved filters

CRM/Dataprocessor/Form/Field.php

CRM/Dataprocessor/Form/Filter/AbstractFilterForm.php

CRM/Dataprocessor/Form/Join/Simple.php

CRM/Dataprocessor/Form/Output/API.php

CRM/Dataprocessor/Form/Source.php

CRM/Dataprocessor/Form/Source/Configuration.php

CRM/DataprocessorSearch/Form/OutputConfiguration.php

CRM/DataprocessorSearch/Form/Search.php

CRM/DataprocessorSearch/Search.php

...ssor/DataFlow/MultipleDataFlows/SimpleNonRequiredJoin.php

...DataProcessor/DataFlow/SqlDataFlow/InTableWhereClause.php

...taProcessor/DataFlow/SqlDataFlow/IsNotNullWhereClause.php

...essor/DataFlow/SqlDataFlow/MultiValueFieldWhereClause.php

Civi/DataProcessor/DataFlow/SqlDataFlow/OrClause.php

.../DataProcessor/DataFlow/SqlDataFlow/SimpleWhereClause.php

...taProcessor/DataFlow/SqlDataFlow/WhereClauseInterface.php

...Processor/FieldOutputHandler/OptionFieldOutputHandler.php

...ataProcessor/FieldOutputHandler/RawFieldOutputHandler.php

Civi/DataProcessor/FilterHandler/SimpleSqlFilter.php

Civi/DataProcessor/Source/AbstractCivicrmEntitySource.php