Merge pull request #3000 from jeremy-lunarg/hayes-update-cmake-minimum

Update cmake minimum required version
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ddbc6e8..a011686 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,7 +33,7 @@
 
 # increase to 3.1 once all major distributions
 # include a version of CMake >= 3.1
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.14.0)
 if (POLICY CMP0048)
   cmake_policy(SET CMP0048 NEW)
 endif()