Add control columns to EuiDataGrid#2846

Merged

chandlerprall merged 14 commits intoelastic:masterfrom

chandlerprall:datagrid/feature/extra-columns

Feb 19, 2020

Commits on Feb 10, 2020

Added action column type to EuiDataGrid; created a row selection demo
chandlerprall
committed

Commits on Feb 12, 2020

Renamed action columns to control columns, finished functionality, demo, and docs
chandlerprall
committed
Don't allow control columns to be expandable
chandlerprall
committed
Added a render test for data grid control columns
chandlerprall
committed

Commits on Feb 13, 2020

Commits on Feb 18, 2020

fix docs
snide
committed

Commits on Feb 19, 2020