Release google-cloud-vision 0.33.0 (googleapis#3280)

* Add ImageAnnotatorClient#batch_annotate_files
  * Add AnnotateFileRequest
  * Add BatchAnnotateFilesRequest
  * Add BatchAnnotateFilesResponse
* Add ImageAnnotatorClient#async_batch_annotate_images
  * Add AsyncBatchAnnotateImagesRequest
  * Add AsyncBatchAnnotateImagesResponse
* Add AnnotateFileResponse#total_pages
* Add InputConfig#content
* Update documentation

Release google-cloud-webrisk 0.1.1 (googleapis#3272)

* Add AUTHENTICATION.md guide.
* Update documentation for common types.

Release google-cloud-vision 0.32.3 (googleapis#3271)

* Add AUTHENTICATION.md guide.
* Update documentation for common types.
* Update generated documentation.
* Update generated code examples.
* Remove Python code example from documentation.
* Extract gRPC header values from request.

Release google-cloud-video_intelligence 1.1.5 (googleapis#3270)

* Add AUTHENTICATION.md guide.
* Update generated documentation.
* Update generated code examples.

Release google-cloud-trace 0.34.2 (googleapis#3269)

* Add AUTHENTICATION.md guide.
* Update generated documentation.
* Update generated code examples.
* Extract gRPC header values from request.

Release google-cloud-tasks 0.7.1 (googleapis#3267)

* Add AUTHENTICATION.md guide.
* Update documentation for common types.

Release google-cloud-talent 0.2.0 (googleapis#3266)

This is a breaking change.

* Client Changes:
  * Add ApplicationServiceClient
  * Update CompanyServiceClient
    * Remove project_path helper method
    * Add tenant_path helper method
  * Update CompletionClient
    * Remove project_path helper method
    * Add tenant_path helper method
    * Rename complete_query company named argument (was company_name)
  * Update EventServiceClient
    * Remove project_path helper method
    * Add tenant_path helper method
  * Update JobServiceClient
    * Remove project_path helper method
    * Add tenant_path helper method
  * Update ProfileServiceClient
    * Rename list_profiles read_mask argument (was field_mask)
* Resource Changes:
  * Remove JobApplication
  * Remove ApplicationOutcomeReasonFilter
  * Remove RecruitingNote
  * Add Application
  * Add Interview
  * Add Rating
  * Add Outcome
  * Add SkillProficiencyLevel
  * Add ApplicationOutcomeNotesFilter
  * Remove Profile#job_applications
  * Remove Profile#recruiting_notes
  * Add Profile#applications
  * Add Profile#assignments
  * Rename Address#current (was is_current)
  * Rename EmploymentRecord#is_supervisor (was is_supervised_position)
  * Remove CommuteMethod::TRANSIT_ACCESSIBLE
  * Rename Job#company (was company_name)
  * Rename JobQuery#companies (was company_names)
  * Rename ProfileQuery#application_outcome_notes_filters (was application_outcome_reason_filters)
  * Rename ApplicationJobFilter#job (was job_name)
  * Rename CompleteQueryRequest#parent (was name)
  * Rename CompleteQueryRequest#company (was company_name)
* Update Job resource path:
  * Now: projects/{project_id}/tenants/{tenant_id}/jobs/{job_id}
  * Was: projects/{project_id}/jobs/{job_id}"
* Rename ProfileQuery#custom_attribute_filter (was custom_field_filter)
* Remove ProfileQuery#application_last_stage_filters
* Remove ProfileQuery#application_status_filters
* Remove ApplicationJobFilter#job
* Remove ApplicationLastStageFilter
* Remove ApplicationStatusFilter
* Add AUTHENTICATION.md guide.
* Update documentation
* Update documentation for common types.
* Update generated code examples.
* Correct management tools URL.
* Remove Python code example from documentation.

Release google-cloud-storage 1.18.1 (googleapis#3265)

* Update Storage Bucket Policy Only documentation.

Release google-cloud-speech 0.34.1 (googleapis#3264)

* Add AUTHENTICATION.md guide.
* Update documentation for common types.
* Update generated documentation.