Added back missing SetMKL.cmake file

cmake/Modules/SetMKL.cmake

@@ -0,0 +1,14 @@
+# Copyright 2022 - David Minton, Carlisle Wishard, Jennifer Pouplin, Jake Elliott, & Dana Singh
+# This file is part of Swiftest.
+# Swiftest is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License 
+# as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+# Swiftest is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty 
+# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License along with Swiftest. 
+# If not, see: https://www.gnu.org/licenses. 
+
+# Find MKL if not already found
+IF(NOT MKL_FOUND)
+    ENABLE_LANGUAGE(C) # Some libraries need a C compiler to find 
+    FIND_PACKAGE(MKL REQUIRED)
+ENDIF(NOT MKL_FOUND)