Patched-Unity-Mono

As some may has noticed all the dnSpy repo's are now archived and further development has ceased (except for iced). It is believed that the group was either bought out or something dubious has happened as his Twitter account was also suspended. So judging by the past, I've forked everything for when the time comes when the dnSpy repo's are deleted altogether. Due to such, I've has to recreate the repo that has all the custom builds.