Common: Add HttpRequest to simplify HTTP requests

Too much boilerplate that is duplicated if we use curl directly.
Let's add a simple wrapper class that hides the implementation details
and just allows to simply make HTTP requests and get responses.

Source/Core/Common/Analytics.h

@@ -11,12 +11,11 @@
 #include <utility>
 #include <vector>
 
-#include <curl/curl.h>
-
 #include "Common/CommonTypes.h"
 #include "Common/Event.h"
 #include "Common/FifoQueue.h"
 #include "Common/Flag.h"
+#include "Common/HttpRequest.h"
 
 // Utilities for analytics reporting in Dolphin. This reporting is designed to
 // provide anonymous data about how well Dolphin performs in the wild. It also
@@ -179,7 +178,8 @@ public:
   void Send(std::string report) override;
 
 protected:
-  CURL* m_curl = nullptr;
+  std::string m_endpoint;
+  HttpRequest m_http;
 };
 
 }  // namespace Common