Fix to feature files to include ietf-yang-types-20130715

ietf-yang-types-20130715 was missing from feature:

odl-yangtools-models

Change-Id: Idb6c6cd2b3377e8f3c18bd1e4b1dd665f00d2642
Signed-off-by: Ed Warnicke <eaw@cisco.com>
Merge "Fix to feature files to include ietf-yang-types-20130715"