OZG-5367 outsource bayernid-proxy

Jenkinsfile

nachrichten-bayernid-proxy/bayernid-proxy-impl/pom.xml

...chrichten/postfach/bayernid/proxy/BayernIdProperties.java

...ten/postfach/bayernid/proxy/BayernIdProxyApplication.java

...n/postfach/bayernid/proxy/BayernIdProxyConfiguration.java

...ten/postfach/bayernid/proxy/BayernIdProxyGrpcService.java

...richten/postfach/bayernid/proxy/BayernIdProxyService.java

...ten/postfach/bayernid/proxy/DeleteOnCloseInputStream.java

...richten/postfach/bayernid/proxy/UploadStreamObserver.java

...n/postfach/bayernid/proxy/akdb/BayernIdRemoteService.java

...stfach/bayernid/proxy/errorhandling/ExceptionHandler.java

...nachrichten/postfach/bayernid/proxy/message/Absender.java

...chrichten/postfach/bayernid/proxy/message/Attachment.java

...hten/postfach/bayernid/proxy/message/BayernIdMessage.java

...ostfach/bayernid/proxy/message/BayernIdMessageMapper.java

...ten/postfach/bayernid/proxy/message/BayernIdResponse.java

...chrichten/postfach/bayernid/proxy/message/Empfaenger.java

...ingframework.boot.autoconfigure.AutoConfiguration.imports

...ayernid-proxy-impl/src/main/resources/application-dev.yml

...ernid-proxy-impl/src/main/resources/application-local.yml