* Add support for the SMSPlus-GX core
* Added settings.json file to tell the live preview VS Code plugin to set the correct headers for threads
* Updated using the @ethanaobrien's suggestions
* Add VICE cores for C64, C128, VIC20, Plus/4, and PET
* Added core options to emulator.js file
* Removed extra space
* Disable cue creation for new VICE cores
* Cores are now sorted at run time
* Debug mode can now be enabled by appending ?debug=1 to the URL