xcbXorg: Parse devSpec params, connect to Xorg displays

This patch adds some nicely weighty code for connecting to X displays
and managing those connections. Attaching devices will automatically
connect to their required X display. Removing all devices dependent
on a given X display connection will also disconnect from that
Xdisplay.

hcore/senseApis/senseApiManager.cpp

@@ -228,7 +228,7 @@ void SenseApiManager::attachSenseDevice(const device::SenseDeviceSpec& spec)
             std::string(__func__) + ": attachDeviceReq() is NULL for library '"
             + lib.libraryPath + "'");
     }
-    lib.senseApiDesc.sal_mgmt_libOps.attachDeviceReq(&spec);
+    lib.senseApiDesc.sal_mgmt_libOps.attachDeviceReq(spec);
 }
 
 void SenseApiManager::detachSenseDevice(const device::SenseDeviceSpec& spec)
@@ -247,7 +247,7 @@ void SenseApiManager::detachSenseDevice(const device::SenseDeviceSpec& spec)
             std::string(__func__) + ": detachDeviceReq() is NULL for library '"
             + lib.libraryPath + "'");
     }
-    lib.senseApiDesc.sal_mgmt_libOps.detachDeviceReq(&spec);
+    lib.senseApiDesc.sal_mgmt_libOps.detachDeviceReq(spec);
 }
 
 void SenseApiManager::attachAllSenseDevicesFromSpecs(void)