Added Initial Achievement Settings

Added AchievementSettings in Config with RA_INTEGRATION_ENABLED, RA_USERNAME, and RA_API_TOKEN. Includes code to load and store from Achievements.ini file in config folder.

Source/Core/Common/CommonPaths.h

@@ -112,6 +112,7 @@
 #define LOGGER_CONFIG "Logger.ini"
 #define DUALSHOCKUDPCLIENT_CONFIG "DSUClient.ini"
 #define FREELOOK_CONFIG "FreeLook.ini"
+#define RETROACHIEVEMENTS_CONFIG "RetroAchievements.ini"
 
 // Files in the directory returned by GetUserPath(D_LOGS_IDX)
 #define MAIN_LOG "dolphin.log"

Source/Core/Common/Config/Config.cpp

@@ -160,7 +160,8 @@ static const std::map<System, std::string> system_to_name = {
     {System::DualShockUDPClient, "DualShockUDPClient"},
     {System::FreeLook, "FreeLook"},
     {System::Session, "Session"},
-    {System::GameSettingsOnly, "GameSettingsOnly"}};
+    {System::GameSettingsOnly, "GameSettingsOnly"},
+    {System::Achievements, "Achievements"}};
 
 const std::string& GetSystemName(System system)
 {

Source/Core/Common/Config/Enums.h

@@ -34,6 +34,7 @@ enum class System
   FreeLook,
   Session,
   GameSettingsOnly,
+  Achievements,
 };
 
 constexpr std::array<LayerType, 7> SEARCH_ORDER{{

Source/Core/Common/FileUtil.cpp

@@ -847,6 +847,8 @@ static void RebuildUserDirectories(unsigned int dir_index)
     s_user_paths[F_DUALSHOCKUDPCLIENTCONFIG_IDX] =
         s_user_paths[D_CONFIG_IDX] + DUALSHOCKUDPCLIENT_CONFIG;
     s_user_paths[F_FREELOOKCONFIG_IDX] = s_user_paths[D_CONFIG_IDX] + FREELOOK_CONFIG;
+    s_user_paths[F_RETROACHIEVEMENTSCONFIG_IDX] =
+        s_user_paths[D_CONFIG_IDX] + RETROACHIEVEMENTS_CONFIG;
     s_user_paths[F_MAINLOG_IDX] = s_user_paths[D_LOGS_IDX] + MAIN_LOG;
     s_user_paths[F_MEM1DUMP_IDX] = s_user_paths[D_DUMP_IDX] + MEM1_DUMP;
     s_user_paths[F_MEM2DUMP_IDX] = s_user_paths[D_DUMP_IDX] + MEM2_DUMP;

Source/Core/Common/FileUtil.h

@@ -85,6 +85,7 @@ enum
   F_DUALSHOCKUDPCLIENTCONFIG_IDX,
   F_FREELOOKCONFIG_IDX,
   F_GBABIOS_IDX,
+  F_RETROACHIEVEMENTSCONFIG_IDX,
   NUM_PATH_INDICES
 };