In the scenario editor and track designer X button in object selector
will now close the object selector window and advance to the next stage
instead of closing the scenario editor and track editor entirely and
returning to the main menu.
Co-authored-by: Gymnasiast <m.o.steenbeek@gmail.com>
Clang-format sees the text behind `#pragma region` as code and formats it. Instead of stating the copyright and date there, it's now in the comment block right below it. The text "Copyright" is left in the `#pragma region` line, as clang-format sees it as a single identifier.
I took the opportunity to normalize the dates, and add the copyright notice to the source files where it was missing them (except for third-party and the generated resources.h file).
