SenseApis: New senseApiManager and X11XcbApi

Still fleshing these out but ultimately senseApiMgr will manage
sense apis, and the X11XcbApi is where we'll connect to Xcb and
read the screen.

hcore/include/senseApis/x11-xcb.h

@@ -0,0 +1,24 @@
+#ifndef X11_XCB_API_H
+#define X11_XCB_API_H
+
+#include <string>
+#include <vector>
+#include <memory>
+
+class X11XcbApi
+{
+public:
+    X11XcbApi(const std::string& displayName);
+    ~X11XcbApi();
+
+    void addDevice(const std::string& deviceSpec);
+    void removeDevice(const std::string& deviceSpec);
+    void addAllDevicesFromSpecs(const std::vector<std::string>& deviceSpecs);
+
+private:
+    std::string displayName;
+    std::vector<std::shared_ptr<DeviceManager::SensorDeviceSpec>> deviceSpecs;
+    // Add other necessary members and methods
+};
+
+#endif // X11_XCB_API_H