Allow '_in' requisites to match both on ID and name

Under the hood, all ``_in`` requisites are changed to extends of
their corresponding type. For example, a ``require_in`` for a given state
extends the target of the ``require_in`` with a ``require`` requisite,
pointing back at the state where the ``require_in`` was located.

When these extends are reconciled, only the ID declarations are examined
to see if there is a state matching the requisite's target, meaning that
these ``_in`` requisites cannot point to a ``name`` override in the same way
as their counterparts are able to. For more info, see https://github.com/saltstack/salt/issues/9061.

This commit modifies the extend reconciliation behavior. If there is no
ID declaration matching the requisite's target, then
``salt.state.find_name()`` is used to search the high data for an ID
declaration with a ``name`` param matching the requisite target. If a
match is found, then the extend is reconciled against that matching ID.
If no match is found, then the requisite is not found the appropriate
error is returned.

Fixes #9061.