Issue errors on out-of-range extracts when width is known (#2428) (#2429)

* Issue errors on out-of-range extracts when width is known

Firrtl will catch this later on, but better to error early if possible.

* Test that errors are generated on OOB extracts when width is known

(cherry picked from commit 462def42

)

Co-authored-by: Andrew Waterman <andrew@sifive.com>