Function dropPointInfo

Given a point (a mouse position), a box, and a possible indent, returns information regarding it's position.

For example if we "zoom" in on a list section like this where the mouse is hovering at the level of B1 (not neccesarily inside it):

...
		- C1
	- B1
- A1
...
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We are interested in the following:

• In what y section we're in (outside-top, top, bottom, outside-bottom)
• In what x section we're in (outside-left, inside, inside-indent, outside-right)

    outside-left \ inside       \ inside-indent \ outside-right
                 \              \               \
outside-top      \              \               \
-----------------┌──────────────┬───────────────┐
                 │B1            │               │
                 │              │               │
top              │              │               │
-----------------├──────────────┼───────────────┤
                 │<---indent--->│               │
                 │              │               │
bottom           │              │               │
-----------------└──────────────┴───────────────┘
outside-bottom
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We can use this information to determine where we want to drop something.