Increase BgCheck_Allocate volume values for faster lookup - Part 2

[Admentus64]

Follow-up to #127

Just assign fixed values regardless of any scene. The y subdivision is also raised up to 8. And the reserved RAM is a fixed 0x2A000 now.

Scenes to test:

• Forest Temple, cus it still uses it's own subdivisions
• Fire Temple, cus it's by far the biggest scene.
• Shadow Temple, cus it's custom subdivisions are now global (the new values are larger)
• Spirit Temple, cus it's by far the second biggest scene.
• Ganon's Castle, cus it's a big scene too
• Final Ganon boss, while the scene itself isn't particular big it needs by far the most RAM for objects
• Shops and background scenes, cus those have minimalist values assigned.

Check if you fall through the floor in any of the rooms in a scene. If not, you're good. Otherwise we either need to reduce the subdivision values or raise the reserved RAM.

Also test if loading times aren't taking too much of a hit, in which case we need lower subdivision values.