Adding support for clang-format (#94)

cmake/FindClangFormat.cmake

@@ -0,0 +1,34 @@
+# Find Clang format
+# 
+# 
+if(NOT ClangFormat_BIN_NAME)
+	set(ClangFormat_BIN_NAME clang-format)
+endif()
+
+# if custom path check there first
+if(ClangFormat_ROOT_DIR)
+    find_program(ClangFormat_BIN 
+        NAMES
+        ${ClangFormat_BIN_NAME}
+        PATHS
+        "${ClangFormat_ROOT_DIR}"
+        NO_DEFAULT_PATH)
+endif()
+
+find_program(ClangFormat_BIN NAMES ${ClangFormat_BIN_NAME})
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(
+    ClangFormat
+    DEFAULT_MSG 
+    ClangFormat_BIN)
+
+mark_as_advanced(
+    ClangFormat_BIN)
+
+if(ClangFormat_FOUND)
+	# A CMake script to find all source files and setup clang-format targets for them
+	include(clang-format)
+else()
+    message("clang-format not found. Not setting up format targets")
+endif()