Create game type filter

src/schema.gql

@@ -64,6 +64,7 @@ input FilterInput {
   videoId: [Int!] = null
   userId: [Int!] = null
   make: MakeInputGQL = null
+  gameType: GameTypeInputGQL = null
 }
 
 input AndFilter {
@@ -115,6 +116,10 @@ input ValueFilterBool {
   equals: String = null
 }
 
+input GameTypeInputGQL {
+  value: ValueFilterString!
+}
+
 type UserGQL {
   id: Int!
   firebaseUid: String!