Initial map module

TO DO: need description

initialMapUI(id)

initialMap(input, output, session, sim, mapID)

Arguments

id	An id string that corresponds with the id used to call the module's UI function.
input	shiny server input object
output	shiny server output object
session	shiny server session object
sim	A simList object
mapID	Character string indicating the name of the map in the simList object.