add move constructor to wx connector class, add simple connector list class, add initial video settings class, update build files

fixed locale code, added locale files, made wx use locale files, fixed some bugs, and added platform-specific files to the main program

With the permission of my fellow contributors, I'm switching obs-studio back to GPL v2+ to prevent issues between this project and the original OBS project, and for personal reasons to avoid legal ambiguity (not political reasons, I admittedly would prefer GPL v3+)