Redid all of the property panel UI prefabs (oof)
Implemented saving and loading of the game state
Moved sector generation to sector constructor (along with loading from save file)
Entity settings now separate from player settings
Player settings (incl. saved run) now statically accessible from game manager
Added animations and submenus to the main menu
Unified main menu settings and properties panel styles for prefab reusability
Added Main Menu scene
Tweaked world map to incorporate secondary colors in zone icons + glowing links
Entity Serialization is now generic
Zone Serialization now includes entities
Fixed bug where wormhole traversal would unbind from player entity
Game Manager no longer spawns entities (loadout file format changed)
Wrote extension to randomly select weighted items from collections (for generating enemies)