Made ratingConditionsHaveBeenMet() public.

Source/Armchair.swift

@@ -472,6 +472,13 @@ public func showPrompt(shouldPrompt: ArmchairShouldPromptClosure) {
     Manager.defaultManager.showPrompt(shouldPrompt)
 }
 
+/**
+ Returns true if rating conditions have been met already and rating prompt is likely to be shown.
+ */
+public func ratingConditionsHaveBeenMet() -> Bool {
+    return Manager.defaultManager.ratingConditionsHaveBeenMet()
+}
+
 // MARK: Misc
 /*
 * This is the review URL string, generated by substituting the appID, affiliate code