Build: Add XCB_LIBS; Skeleton: mlo_initializeInd, mlo_attachDeviceReq

* Renamed some of the Sense API lib classes
  (CSensorDeviceDesc=>CSenseDeviceDesc,
  SensorDeviceDesc=>SenseDeviceDesc).
* Moved SenseApiDesc into /include/user/senseApiDesc.
* Add conversion constructor to convert from SenseDeviceDesc
  to
* Wireframe mlo_initializeInd to call xcb_connect().
* Add $(XCB_LIBS) to libxcbXorg_LDFLAGS.
* Wireframe mlo_attachDeviceReq().

hcore/include/senseApis/senseApiManager.h

@@ -8,6 +8,7 @@
 #include <optional>
 #include <functional>
 #include <senseApis/senseApiLib.h>
+#include <user/senseDeviceSpec.h>
 
 namespace hk {
 namespace sense_api {
@@ -24,6 +25,8 @@ public:
     SenseApiLib& loadSenseApiLib(const std::string& libraryPath);
     std::optional<std::reference_wrapper<SenseApiLib>> getSenseApiLib(
         const std::string& libraryPath);
+    std::optional<std::reference_wrapper<SenseApiLib>> getSenseApiLibByApiName(
+        const std::string& apiName);
     void unloadSenseApiLib(const std::string& libraryPath);
 
     void initializeSenseApiLib(SenseApiLib& lib);
@@ -34,6 +37,11 @@ public:
     void initializeAllSenseApiLibs(void);
     void finalizeAllSenseApiLibs(void);
 
+    void attachAllSenseDevicesFromSpecs(void);
+    void attachSenseDevice(const SenseDeviceSpec& spec);
+    void detachSenseDevice(const SenseDeviceSpec& spec);
+    void detachAllSenseDevices(void);
+
     std::string stringifyLibs() const;
 
 private: