This is not really the functionality the scene switcher was originally intended for. Though, possible extensions like switching based on timers or switching based on the contents of a file are possible extensions that come to mind, your suggestion appears to be switching based on the title of a specific window. I personally won't be adding this though, but you are free to extend it or to fork the code and make your own plugin to do exactly what you want, of course. In the latter case, do make sure to use a unique name and use a unique config file.
Regarding building the plugin: Please note that scene switcher is now included in the OBS repository, so it's not much use trying to build the svn repository of scenesw, as it is outdated anyway. Other than that, compiling a dll really isn't different from compiling an executable.
This forum has compile instructions for the original OBS. If you check this out, you will find the scene switcher project included with it. Compiling the obs-all solution then also compiles the dll.