Adds a bunch of abilities

Scripts/Battle/SuppressWeather.as

@@ -0,0 +1,21 @@
+namespace Gen7 {
+    [Battle effect=SuppressWeather]
+    class SuppressWeather : PkmnScript {
+        int num = 1;
+
+        void Stack() override {
+            num++;
+        }
+
+        void Unstack() {
+            num--;
+            if (num == 0){
+                cast<Battle@>(GetOwner()).RemoveVolatile("SuppressWeather");
+            }
+        }
+
+        void BlockWeather(Battle@, bool &inout block){
+            block = true;
+        };
+    }
+}