[0.3] Save files!

Version 0.3 changelog

• Implemented saving to and loading from file.
  • You can view your save file's playtime in the main menu or on the map screen in the pause menu.
  • A star will be shown on your save file in the main menu if you have seen the game's ending.
• Fixed electric barriers not dealing damage to the player correctly, as well as an endless death loop caused by the electric barriers that would result in a softlock.
• Added a 0.5 second period of time where the player can't interact with NPCs right after closing a dialogue box. Hopefully lessens the chance of accidentally talking to the same NPC twice in a row.
• Added more colour palettes.