Reduce coupling between ValueEditors/Viewers and Set and StyleSheet.

- Adding of actions is done with an addAction function
 - Files are read from
     - getStylePackage for styling stuff (this is stylesheet)
     - getLocalPackage for symbol and image values (this was the set)


git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@970 0fc631ac-6414-0410-93d0-97cfa31319b6

src/gui/symbol/editor.cpp

@@ -15,3 +15,7 @@
 void SymbolEditorBase::SetStatusText(const String& text) {
 	control.parent->SetStatusText(text);
 }
+
+void SymbolEditorBase::addAction(Action* action, bool allow_merge) {
+	getSymbol()->actions.addAction(action, allow_merge);
+}