Last minute CI Style tweaks for 8.14

## What does this MR do?
- Skipped builds now have use a lighter gray.
- Converted all status icons to be managed by scss colors only
- Consolidated all status icon styles into icons.scss
- Deleted any classes or styles within the svg's
- Gave status badges a hover style, but only if clickable
- Fixed alignment issue mini-pipeline graph

## Are there points in the code the reviewer needs to double check?

## Why was this MR needed?
As per the discussion in the slack chat https://gitlab.slack.com/archives/ci/p1479743986004879

## Screenshots (if relevant)
- skipped builds:
![image](/uploads/f59c615045472b9b13940463a64c8038/image.png)
![image](/uploads/26503d1da9c93b3c22c5c0c1369feceb/image.png)

- hover style status badges:
![2016-11-22_00.21.27](/uploads/36afa7aa64d60e1755bf39d97f90c59f/2016-11-22_00.21.27.gif)![2016-11-22_00.58.38](/uploads/1d95fa5db124412d3f83b3e79b9b71ec/2016-11-22_00.58.38.gi...