Add test for in-view zone edits

Add a test case for GL #2845 (closed) where a zone is in two views, one base view and one "in-view" and that zone is using an $INCLUDE. Make sure that there is a jnl file (have ixfr-from-differences enabled and do a dynamic update). Then freeze and make updates in the included file (this requires the test.db file also to be updated because 'rndc freeze' causes the zone file to be overwritten). Finally reload and ensure that the edit in the included file has been loaded.

Closes #2845 (closed)

Based on top of 2844-rndc-freeze-command-always-fails-perhaps-due-to-in-view because the test depends on the fix in that branch.