Added type_sanitizer.rb to consolidate converting a string to a valid C identifier, which will allow CMock and Ceedling to use the same construct which is currently duplicated in each repo.

auto/type_sanitizer.rb

@@ -0,0 +1,8 @@
+module TypeSanitizer
+  
+  def self.sanitize_c_identifier(unsanitized)
+    # convert filename to valid C identifier by replacing invalid chars with '_'
+    return unsanitized.gsub(/[-\/\\\.\,\s]/, "_")
+  end
+
+end