OpenGOAL - Outset Island with level boundaries, tasks and progress menu page

Using ruh's custom Outset Island level (Outset Island in Sentinel Beach) because I was too lazy to make my own, I added:

- Level boundaries to Sentinel Beach to load the level in as you're walking towards it
- Tasks, so the power cells you can get actually count towards the total (meaning there are 104 power cells you can have in total, minus one that wouldn't be counted because of a small bug I couldn't figure out)
- Proper scout fly and orb counts, so you get that pop up when you collect every orb and the last scout fly drops a power cell
- A page for the level in the progress menu keeping track of all tasks

Just a small experiement to try to "seamlessly" integrate a custom level into the game.