OZG-3086 Lizenzheader hinzugefügt

...ace/src/main/java/de/itvsh/ozg/pluto/command/Command.java

.../java/de/itvsh/ozg/pluto/command/CommandCreatedEvent.java

...java/de/itvsh/ozg/pluto/command/CommandExecutedEvent.java

...n/java/de/itvsh/ozg/pluto/command/CommandFailedEvent.java

...c/main/java/de/itvsh/ozg/pluto/command/CommandStatus.java

.../java/de/itvsh/ozg/pluto/command/VorgangCreatedEvent.java

pluto-interface/src/main/protobuf/binaryfile.proto

pluto-interface/src/main/protobuf/callcontext.proto

...o-interface/src/main/protobuf/clientattribute.model.proto

pluto-interface/src/main/protobuf/clientattribute.proto

pluto-interface/src/main/protobuf/command.model.proto

pluto-interface/src/main/protobuf/command.proto

pluto-interface/src/main/protobuf/common.model.proto

pluto-interface/src/main/protobuf/email.model.proto

pluto-interface/src/main/protobuf/email.proto

pluto-interface/src/main/protobuf/file.proto

pluto-interface/src/main/protobuf/filemodel.proto

pluto-interface/src/main/protobuf/forwarding.model.proto

pluto-interface/src/main/protobuf/forwarding.proto

pluto-interface/src/main/protobuf/postfach.model.proto