dropSet basics

finished a constructor -- all the basic data reads in and is *there*.
possibly should do some of that with helper methods from a maintenance
standpoint.
dropSet fixed to actually represent all the files

i'm a bit of an idiot and didn't realize that i should be making those
data arrays. i'm pretty sure it was just loading the last file's data as
of last commit.

frankly, there should probably be an additional "drop" object -- that
would resolve a lot of the organizational issues in the class and the
fact that the arrays of data are a bit clunky.
BROKEN: added new class drop & shifted data

moved all relevant dropSet data over to drop. having some issues with
the array of drops -- weird types stuff going on. -- throwing "can't
convert drop to double" when i try to put drop into an array
fixed issues with object array

wasn't using proper syntax for an object array. need to use
arrayname(index).Value to get the object out.
drop class complete(?)

at least for now -- has all the data we need in there and everything
gets assigned correctly as of right now