PS4Mount 0.7.3

Changes

• Raise the game limit per drive to 768 and say when games are past it
• List every add-on of a game: keep a small record per add-on instead of the parsed pkg, and accept long add-on choices
• Count only add-ons with content for the add-on limit: unlock-only add-ons are never mounted
• Search up to 64 folders for pkgs, keep long folder lists whole and say when folders are ignored
• Tests: check each piece of a long request fits before adding it

Full Changelog: v0.7.2...v0.7.3