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

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

slsDetectorSoftware/src/Module.h

@@ -206,7 +206,7 @@ class Module : public virtual slsDetectorDefs {
     void startAcquisition();
     void startReadout();
     void stopAcquisition();
-    void restreamStopFromReceiver();
+    void streamRxDummyHeader();
     void startAndReadAll();
     runStatus getRunStatus() const;
     runStatus getReceiverStatus() const;