Mythen3 improved synchronization (#231)

Disabling scans for multi module Mythen3, since there is no feedback of the detectors being ready
startDetector first starts the slaves then the master
acquire firs calls startDetector for the slaves then acquire on the master
getMaster to read back from hardware which one is master

python/src/detector.cpp

@@ -1132,6 +1132,10 @@ void init_det(py::module &m) {
              (Result<std::array<ns, 3>>(Detector::*)(sls::Positions) const) &
                  Detector::getGateDelayForAllGates,
              py::arg() = Positions{})
+        .def("getMaster",
+             (Result<bool>(Detector::*)(sls::Positions) const) &
+                 Detector::getMaster,
+             py::arg() = Positions{})
         .def("getNumberOfAnalogSamples",
              (Result<int>(Detector::*)(sls::Positions) const) &
                  Detector::getNumberOfAnalogSamples,