added text xml file with standard value airdrag component

VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.8/vecto_vehicle-stage_input_only_mandatory_standard_value_airdrag.xml

+<?xml version="1.0" encoding="UTF-8"?><tns:VectoInputDeclaration schemaVersion="2.8" xmlns="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:DEV:v2.8"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xmlns:tns="urn:tugraz:ivt:VectoAPI:DeclarationInput:v2.0" xmlns:v2.0="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:v2.0" xmlns:di="http://www.w3.org/2000/09/xmldsig#" xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationJob E:\VECTO_DEV\fk_vecto-dev\VectoCore\VectoCore\Resources\XSD/VectoDeclarationJob.xsd">
	<v2.0:Vehicle id="VEH-1234567890" xsi:type="InterimStageInputType" >
		<Manufacturer>Some Manufacturer 3</Manufacturer>
		<ManufacturerAddress>Some Manufacturer Address 3</ManufacturerAddress>
		<VIN>VEH-1234567890</VIN>
		<Date>2020-01-09T11:00:00Z</Date>
		<DeclarationType>final</DeclarationType>
		<Components xmlns:v2.8="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:DEV:v2.8" xsi:type="v2.8:CompletedVehicleComponentsDeclarationType">
		<v2.8:AirDrag>
			<v2.0:Data xsi:type="v2.8:AirDragModifiedUseStandardValueType" id="std"/>
			<v2.0:Signature>
				<di:Reference URI="#std">
					<di:Transforms>
						<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
						<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
					</di:Transforms>
					<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
					<di:DigestValue>b9SHCfOoVrBxFQ8wwDK32OO+9bd85DuaUdgs6j/29N8=</di:DigestValue>
				</di:Reference>
			</v2.0:Signature>
		</v2.8:AirDrag>
			<Auxiliaries>
				<Data xsi:type="v2.8:CompletedVehicleAuxiliaryDataDeclarationType"></Data>
			</Auxiliaries>
		</Components>
	</v2.0:Vehicle></tns:VectoInputDeclaration>
\ No newline at end of file

VectoCore/VectoXML.spp

@@ -68,6 +68,7 @@
 			<File FilePath="VectoCoreTest\TestData\XML\XMLReaderDeclaration\SchemaVersion2.8\vecto_vehicle-stage_input_only_certain_entries02-sample.xml" HomeFolder="Yes"/>
 			<File FilePath="VectoCoreTest\TestData\XML\XMLReaderDeclaration\SchemaVersion2.8\vecto_vehicle-stage_input_only_component_nullable_entries.xml" HomeFolder="Yes"/>
 			<File FilePath="VectoCoreTest\TestData\XML\XMLReaderDeclaration\SchemaVersion2.8\vecto_vehicle-stage_input_only_mandatory_entries.xml" HomeFolder="Yes"/>
+			<File FilePath="VectoCoreTest\TestData\XML\XMLReaderDeclaration\SchemaVersion2.8\vecto_vehicle-stage_input_only_mandatory_standard_value_airdrag.xml" HomeFolder="Yes"/>
 		</Folder>
 		<Folder FolderName="Schema Multistage 0.1">
 			<File FilePath="VectoCoreTest\TestData\XML\XMLReaderDeclaration\SchemaVersionMultistage.0.1\vecto_multistage_consolidated_multiple_stages.xml" HomeFolder="Yes"/>