Changes

Add keybind for the "Set Area ID" function ('F')
Add FOV spinbox in the settings window
Make "render distance" and "far z" one setting
Add current map bookmarks menu to be able to use them while editing
Add liquid collisions when in the liquids editor ('C' to toggle)
Add auto opacity settings for the liquids (auto switch between river and ocean opacity depending on the liquid type)
Add liquid picker to select the liquid under the cursor ('middle mouse button')
Improve empty texture layer detection when cleaning them

Fixes

Fix MCLQ related flags not being cleared from the MCNK header when saving liquids as MH2O
Fix random rotation range in the object editor
Fix locked cursor plane not visible when between the water and camera
Fix 2D view performances
Fix terrain holes not visually updating properly when adding/removing holes