Updated git submodules

Project: sdc/sdc-workflow-designer master ff78ef472f8e481afb39f24a1d37737ef8dfab60

Add activity spec code

Move code from sdc repository and:
1. place according to this project structure
2. refactor DTOs and use mapstruct
3. change errorResponse to be a json instead of a string (for all workflow code)

Change-Id: Ia85590b53ab59ff7600e05b8a6d52e06b1773220
Issue-ID: SDC-1606
Signed-off-by: talig <talig@amdocs.com>

diff --git a/docs/submodules/sdc/sdc-workflow-designer.git b/docs/submodules/sdc/sdc-workflow-designer.git
index 9239101..ff78ef4 160000 (submodule)
--- a/docs/submodules/sdc/sdc-workflow-designer.git
+++ b/docs/submodules/sdc/sdc-workflow-designer.git
@@ -1 +1 @@
-Subproject commit 923910109f7796aca1263df1a7fa13f7d6bc072c
+Subproject commit ff78ef472f8e481afb39f24a1d37737ef8dfab60