[EuiListGroup] and [Items] Adds `gutterSize`, `color`#2980

Merged

cchaos merged 7 commits intoelastic:masterfrom

cchaos:props/list_group

Mar 5, 2020

Commits on Mar 4, 2020

[EuiListGroup] Added `gutterSize`
cchaos
committed
[EuiListGroupItem] Added `color` prop and updated size styles
cchaos
committed
Fix up the docs
cchaos
committed
Cleanup
cchaos
committed

Commits on Mar 5, 2020