Updates for Discord Rich Presence

- Change the large image varying with build type based on 86Box.rc
- Upload the necessary assets

src/win/win_discord.c

@@ -96,12 +96,24 @@ discord_update_activity(int paused)
 
     activity.timestamps.start = time(NULL);
 
+/* Icon choosing for Discord based on 86Box.rc */
+
 #ifdef RELEASE_BUILD
-    strcpy(activity.assets.large_image, "86box-rb");
+/* Icon by OBattler and laciba96 (green for release builds)*/
+    strcpy(activity.assets.large_image, "86box-green");
+#elif BETA_BUILD
+/* Icon by OBattler and laciba96 (yellow for beta builds done by Jenkins)*/
+    strcpy(activity.assets.large_image, "86box-yellow");
+#elif ALPHA_BUILD
+/* Icon by OBattler and laciba96 (red for alpha builds done by Jenkins)*/
+    strcpy(activity.assets.large_image, "86box-red");
 #else
-    strcpy(activity.assets.large_image, "86box");
+/* Icon by OBattler and laciba96 (gray for builds of branches and from the git master)*/
+    strcpy(activity.assets.large_image, "86Box");
 #endif
 
+/* End of icon choosing */
+
     if (paused)
     {
 	strcpy(activity.assets.small_image, "status-paused");