Add rx_streamdummyheader command (#1442)

* add rx_restream_stop command. This allows to send a ZMQ dummy header any time user wants to do so. For example this allows to pre-configure the ZMQ processing software before the acquisition begins. Therefore, the dummy header was adapted in order to contain the fields stored in the receiver.

* renamed command, changed inherit, moved commands to zmq related section

* update filename in restreamstop

* renamed helper function, sorted header fields alphabetically

* fixed fnametostream set

* renamed functions, add SetFileName method, format JSON parameters order

* added python bindings and formatting (does nothing really)

* renamed restream stop functions to stream dummy

* checkout .github files from ed8c885

* release notes

---------

Co-authored-by: Dhanya Thattil <dhanya.thattil@psi.ch>

slsDetectorSoftware/src/inferAction.cpp

@@ -2819,6 +2819,18 @@ int InferAction::rx_stop() {
     }
 }
 
+int InferAction::rx_streamdummyheader() {
+
+    if (args.size() == 0) {
+        return slsDetectorDefs::PUT_ACTION;
+    }
+
+    else {
+
+        throw RuntimeError("Could not infer action: Wrong number of arguments");
+    }
+}
+
 int InferAction::rx_tcpport() {
 
     if (args.size() == 0) {