Adds support for a manifest file (archipelago.json) inside an .apworld file. It tells AP the game, minimum core version (optional field), maximum core version (optional field), its own version (used to determine which file to prefer to load only currently)
The file itself is marked as required starting with core 0.7.0, prior, just a warning is printed, with error trace.
Co-authored-by: Doug Hoskisson <beauxq@users.noreply.github.com>
Co-authored-by: qwint <qwint.42@gmail.com>
Co-authored-by: Exempt-Medic <60412657+Exempt-Medic@users.noreply.github.com>
Co-authored-by: NewSoupVi <57900059+NewSoupVi@users.noreply.github.com>
