Build out new pipeline header

...ascripts/pipelines/components/pipeline_details_header.vue

...ascripts/pipelines/components/pipelines_list/time_ago.vue

...es/graphql/queries/get_pipeline_header_data.query.graphql

app/assets/javascripts/pipelines/pipeline_details_header.js

app/helpers/projects/pipeline_helper.rb

app/presenters/ci/pipeline_presenter.rb

app/presenters/merge_request_presenter.rb

app/views/projects/pipelines/_info.html.haml

locale/gitlab.pot

spec/frontend/fixtures/pipeline_header.rb

spec/frontend/pipelines/mock_data.js

spec/frontend/pipelines/pipeline_details_header_spec.js

spec/frontend/pipelines/time_ago_spec.js

spec/helpers/projects/pipeline_helper_spec.rb

spec/presenters/ci/pipeline_presenter_spec.rb

spec/presenters/merge_request_presenter_spec.rb