Update git submodules

* Update docs/submodules/policy/engine.git from branch 'master'
  to 0e45b29c2356e74f5185744f661082e6cf00b72e
  - Merge "Add capability for multi-role support"
  - Add capability for multi-role support

    Changes ported from ECOMP into ONAP for multi-role functionality in Policy Editor GUI

    Issue-ID: POLICY-1419
    Change-Id: I438c074e935c28b014be44ae2eab1d49b45e11e2
    Signed-off-by: Polina Volodina <pv789v@att.com>

diff --git a/docs/submodules/policy/engine.git b/docs/submodules/policy/engine.git
index 3b0becf..0e45b29 160000 (submodule)
--- a/docs/submodules/policy/engine.git
+++ b/docs/submodules/policy/engine.git
@@ -1 +1 @@
-Subproject commit 3b0becfbca1fb48889f2b82361dae2abe1583c1f
+Subproject commit 0e45b29c2356e74f5185744f661082e6cf00b72e