Accessibility in Table Component

[Ajudiya13]

Bug Report

Hard-coded role props in the Table component.

What is the current behavior?

Currently, two div elements have role props "grid" and "gridcell" respectively in Table Component. This causes accessibility limitation to use Table Component with another role props.

What is the expected behavior?

The role should be props driven so that the user can have their own role props to have better and customized accessibility experience.

[laughnan]

We are also having this issue that we need to configure the Table component's role value to table instead of grid due to limitations with screenreading software.

It looks like there is a starting PR with this change: #1646

[laughnan]

Added unit tests and pending review from @wuweiweiwu or @bvaughn ==> #1691