Avoid too-strict controller checks when fleshing for cstore, reporter-store

Avoid too-strict controller checks when fleshing for cstore, reporter-store

Move controller-verificiation from the beginning of recursive
doFieldmapperSearch() to nearer the end, right before we recurse, so we
only check the child class's controller if we're pcrud.  If we're not
pcrud, code that calls doFieldmapperSearch() from the outside will have
already done appropriate testing of the controller.

Signed-off-by: Lebbeous Fogle-Weekley <lebbeous@esilibrary.com>