added install rules for .proto and .h files
added install rules for .proto and .h files

mhaberler/machinetalk-protobuf,machinekit/machinetalk-protobuf,mhaberler/machinetalk-protobuf,strahlex/machinetalk-protobuf,bobvanderlinden/machinetalk-protobuf,strahlex/machinetalk-protobuf,machinekit/machinetalk-protobuf,machinekit/machinetalk-protobuf,mhaberler/machinetalk-protobuf,bobvanderlinden/machinetalk-protobuf,mhaberler/machinetalk-protobuf,machinekit/machinetalk-protobuf