[Role Parity] What do we do about input (type=time)?

[joanmarie]

[carmacleod]

Need to think about role name for this one, because there's a name conflict with <time> element.

[jnurthen]

As detailed at https://github.com/w3c/aria/wiki/Plans-regarding-role-parity#no-consensus-yet-will-do-for-1-3 moving to 1.3