OZG-3136 add xta-adapter with xta.wsdl and generate code

pom.xml

xta-adapter/pom.xml

xta-adapter/src/main/resources/OSCI2_02.xsd

...adapter/src/main/resources/OSCI_MessageMetaData_V2.02.xsd

xta-adapter/src/main/resources/XTA-Webservice-Datentypen.xsd

xta-adapter/src/main/resources/XTA-Webservice-Exceptions.xsd

...er/src/main/resources/XTA-Webservice-Globale-Elemente.xsd

xta-adapter/src/main/resources/XTA-synchron.wsdl

xta-adapter/src/main/resources/XTA.wsdl

...main/resources/oasis-200401-wss-wssecurity-secext-1.0.xsd

...ain/resources/oasis-200401-wss-wssecurity-utility-1.0.xsd

xta-adapter/src/main/resources/soap-envelope.xsd

xta-adapter/src/main/resources/ws-addr-wsdl.xsd

xta-adapter/src/main/resources/ws-addr.xsd

xta-adapter/src/main/resources/ws-policy.xsd

xta-adapter/src/main/resources/xenc-schema.xsd

xta-adapter/src/main/resources/xml.xsd

xta-adapter/src/main/resources/xmldsig-core-schema.xsd

xta-adapter/src/main/resources/xmlmime.xsd

xta-adapter/src/main/resources/xoev-basisdatentypen.xsd