- add ceedling/cmock/unity as testing framework and support

- unified makefile project for the whole repos
- new separate project for tests

tests/vendor/ceedling/lib/system_utils.rb

@@ -0,0 +1,32 @@
+
+class Object
+  def deep_clone
+    Marshal::load(Marshal.dump(self))
+  end
+end
+
+
+class SystemUtils
+
+  constructor :system_wrapper
+
+  def setup
+    @tcsh_shell = nil
+  end
+
+  def tcsh_shell?
+    # once run a single time, return state determined at that execution
+    return @tcsh_shell if not @tcsh_shell.nil?
+  
+    result = @system_wrapper.shell_backticks('echo $version')
+
+    if ((result[:exit_code] == 0) and (result[:output].strip =~ /^tcsh/))
+      @tcsh_shell = true
+    else
+      @tcsh_shell = false
+    end
+  
+    return @tcsh_shell
+  end
+
+end