Triggered pipelines

#### What does this MR do?
Separates trigger into its own column

#### Screenshots (if relevant)
![Screen_Shot_2016-10-07_at_4.21.54_PM](/uploads/092e8205d329b66b34045fe17c5e6e4f/Screen_Shot_2016-10-07_at_4.21.54_PM.png)
![Screen_Shot_2016-10-17_at_9.13.10_AM](/uploads/7df90e0e2a07a9f282df3605787d3cc2/Screen_Shot_2016-10-17_at_9.13.10_AM.png)
![Screen_Shot_2016-10-17_at_9.15.07_AM](/uploads/b7dc0307c8549e72c3f812c3cd91833a/Screen_Shot_2016-10-17_at_9.15.07_AM.png)

#### What are the relevant issue numbers?
Closes #19991

See merge request !6753