fix #595: fixed wrong entries in exempted techs

...e/xEV XML Jobs/PrimaryBuses/exempted_primary_heavyBus.xml

...ctoCore/Resources/XSD/VectoDeclarationDefinitions.2.4.xsd

...e/VectoCore/Resources/XSD/VectoOutputManufacturer.0.8.xsd

...e/VectoCore/Resources/XSD/VectoOutputManufacturer.0.9.xsd

...Core/VectoCore/Resources/XSD/VectoOutputMultistep.0.1.xsd

...e/CompletedBus/VIF/exempted_primary_heavyBus.RSLT_VIF.xml

...eclMode/PrimaryBus/Exempted/exempted_primary_heavyBus.xml

...n2.4/Distributed/ExemptedVehicles/exempted_heavyLorry.xml

...2.4/Distributed/ExemptedVehicles/exempted_mediumLorry.xml

...n2.4/Distributed/ExemptedVehicles/exempted_primaryBus.xml

...eclaration/SchemaVersion2.4/exempted_primary_heavyBus.xml

...VersionMultistage.0.1/exempted_completed.VIF_Report_2.xml

...maVersionMultistage.0.1/exempted_primary_heavyBus.VIF.xml