Added missing file

dlib/tell_visual_studio_to_use_static_runtime.cmake

+
+# Including this cmake script into your cmake project will cause visual studio
+# to build your project against the static C runtime.
+
+cmake_minimum_required(VERSION 2.6.4)
+if (POLICY CMP0054)
+    cmake_policy(SET CMP0054 NEW)
+endif()
+
+if (MSVC OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC") 
+   foreach(flag_var
+         CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
+         CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
+      if(${flag_var} MATCHES "/MD")
+         string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
+      endif()
+   endforeach(flag_var)
+endif()
+