Extern repo Azure_C_Shared commit moved forward (#1103)

Picking up change:

commit 5a70f27709a2d4869b7db6794887481db28260d0 (HEAD)
Author: Wes Barcalow <wesbarc@microsoft.com>
Date:   Fri Jan 17 14:09:07 2020 -0800

    tickcounter_get_current_ms now returns ms resolution time ticks

extern/azure_c_shared/CMakeLists.txt

@@ -1,7 +1,8 @@
 if (NOT TARGET aziotsharedutil)
-    option(use_http "" OFF)
-    option(use_wsio "" OFF)
-    option(use_cppunittest "" OFF)
+    SET(use_http OFF CACHE BOOL "" FORCE)
+    SET(use_wsio OFF CACHE BOOL "" FORCE)
+    SET(use_cppunittest OFF CACHE BOOL "" FORCE)
+    SET(skip_samples ON CACHE BOOL "" FORCE)
 
     # By default, CMake turns on /W3 for all MSVC builds.
     # azure_c_shared_utility's CMakeLists.txt will then append /W4 to the
@@ -13,6 +14,9 @@ if (NOT TARGET aziotsharedutil)
 
     add_subdirectory(src EXCLUDE_FROM_ALL)
 
+    target_include_directories(aziotsharedutil PUBLIC $<BUILD_INTERFACE:${MACRO_UTILS_INC_FOLDER}>)
+    target_include_directories(aziotsharedutil PUBLIC $<BUILD_INTERFACE:${UMOCK_C_INC_FOLDER}>)
+
 else()
     message(STATUS "aziotsharedutil is already a target. Skipping adding it twice")
 endif()

extern/azure_c_shared/src

@@ -1 +1 @@
-Subproject commit bcf6393b1ce3cecf0fcdf8988621fd6e4d414df3
+Subproject commit 5a70f27709a2d4869b7db6794887481db28260d0