Add resolution

src/schema.gql

@@ -404,6 +404,7 @@ input VideoMetadataInput {
   lastIntendedSegmentBound: Int = null
   streamSegmentType: StreamSegmentTypeEnum = null
   endStream: Boolean! = false
+  resolution: VideoResolution = null
 }
 
 input UploadStreamMetadataInput {
@@ -428,3 +429,8 @@ enum StreamSegmentTypeEnum {
   FRAGMENTED_MP4
   RB_CHUNKED_MP4
 }
+
+input VideoResolution {
+  width: Int!
+  height: Int!
+}