DevMgr,Dev: Add Qutexes

Add Qutex locks to both DeviceManager and Device. These will be
properly used in the upcoming patches.

smocore/include/deviceManager/device.h

@@ -7,6 +7,7 @@
 #include <sstream>
 #include <user/deviceAttachmentSpec.h>
 #include <deviceManager/deviceRole.h>
+#include <qutex.h>
 
 namespace smo {
 namespace device {
@@ -14,7 +15,9 @@ namespace device {
 class Device
 {
 public:
-    Device(const std::string& identifier) : deviceIdentifier(identifier) {}
+    Device(const std::string& identifier)
+	: deviceIdentifier(identifier), qutex("Device-" + identifier)
+	{}
 
     std::string stringify() const
     {
@@ -30,6 +33,7 @@ public:
 public:
 	std::string deviceIdentifier;
 	std::vector<std::shared_ptr<DeviceRole>> deviceRoles;
+	Qutex qutex;
 };
 
 } // namespace device