Authlib injector, local auth server and ely by accounts support (#31)

* Add injector

* Add uuid generation for profile

* Add auth server emulator

* Start auth server on random port and bypass it to injector

* Run injector only when account type is dummy

* Clean authlib injector

* Add ely by authentication

* Remove old comments

* Add response status text to auth server

* Fix json value access

as done by @maximmasterr

api/logic/AuthServer.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <QString>
+#include <QTcpServer>
+#include "settings/SettingsObject.h"
+#include "multimc_logic_export.h"
+
+class MULTIMC_LOGIC_EXPORT AuthServer: public QObject
+{
+public:
+  explicit AuthServer(QObject *parent = 0);
+
+  quint16 port();
+
+private:
+  void newConnection();
+  
+private:
+  std::shared_ptr<QTcpServer> m_tcpServer;
+};