Fix SetAllArrayStatus on the ExodusII reader.

Calling SetAllArrayStatus with any "_CONN" enum has no effect because
these are not the enums that the API expects to be used for connectivity.
However, the ones it does expect (e.g., SIDE_SET instead of
SIDE_SET_CONN) are being used by SetAllArrayStatus for indicating whether
result arrays defined on cells (e.g. pressure, temperature, ...) should
be loaded. So, for this method only, convert the "_CONN" enum into the
expected enum before continuing.

Change-Id: I0d0064e82c635ad94b3b293d39bb0d64f2607bbd
Merge topic 'fix-exodus-setallarraystatus' into master

905de370 Fix SetAllArrayStatus on the ExodusII reader.