Wait for camera to finish acquisition in Eiger & Jungfrau destructors

* Test sequences were destroying model while still in use

src/SlsDetectorEiger.cpp

@@ -753,6 +753,7 @@ Eiger::Eiger(Camera *cam)
 Eiger::~Eiger()
 {
 	DEB_DESTRUCTOR();
+	getCamera()->waitAcqState(Idle);
 	removeAllCorr();
 }
 

src/SlsDetectorJungfrau.cpp

@@ -127,6 +127,7 @@ Jungfrau::Jungfrau(Camera *cam)
 Jungfrau::~Jungfrau()
 {
 	DEB_DESTRUCTOR();
+	getCamera()->waitAcqState(Idle);
 }
 
 void Jungfrau::getFrameDim(FrameDim& frame_dim, bool raw)