add arduino mega board level for testing with schematic
move symbol on absolute grid
adjust placement of parts to allow for nets to be drawn easily
about 1/3 of the way through adding label and pinnumber values
finished adding values to pinnumber and pinlabel for 16 more connections
sorted order on one header section
move pins to match physical order for intuitive use of the schematic
add values for pinlabels and pinnumbers to upper right header of the board
update the values for pinnumbers on the bottom headers
add top row of values for pinlabels
resize schematic outlines to accomodate lower header
added all values for bottom header pinnumber and pinlabel
adjust text overlaps in bottom header
adjust labels and visual arrangement for readability
add values for footprints, documentation, and description text fields