feat: add FaceDetection, PersonDetection to v1p3beta1 (#62)

Author: yoshi-automation

google-cloud-video-intelligence/src/main/java/com/google/cloud/videointelligence/v1beta2/VideoIntelligenceServiceClient.java

@@ -193,7 +193,7 @@ public final OperationsClient getOperationsClient() {
  * wildcards in `object-id`, and thus identify multiple videos. Supported wildcards: '*'
  * to match 0 or more characters; '?' to match 1 character. If unset, the input video should
  * be embedded in the request as `input_content`. If set, `input_content` should be unset.
- * @param features Requested video annotation features.
+ * @param features Required. Requested video annotation features.
  * @throws com.google.api.gax.rpc.ApiException if the remote call fails
  */
  @BetaApi(

google-cloud-video-intelligence/src/main/java/com/google/cloud/videointelligence/v1p2beta1/VideoIntelligenceServiceClient.java

@@ -193,7 +193,7 @@ public final OperationsClient getOperationsClient() {
  * wildcards in `object-id`, and thus identify multiple videos. Supported wildcards: '*'
  * to match 0 or more characters; '?' to match 1 character. If unset, the input video should
  * be embedded in the request as `input_content`. If set, `input_content` should be unset.
- * @param features Requested video annotation features.
+ * @param features Required. Requested video annotation features.
  * @throws com.google.api.gax.rpc.ApiException if the remote call fails
  */
  @BetaApi(