Lack Enclosure Drawers for M3 fasteners

The original Lack enclosure drawers call for M2 nuts and machine screws, but I had a large stash of M3 hardware to use. STLs include the A1, A1-D, and R1 drawers, with their bottom hex nut and screw holes enlarged to accomodate M3 hardware. I have not adjusted the top hardware of the A2 or R2 drawers, because I was not mounting more than one row - I was mounting a sheet holder instead. The enlarged holes don't interfere with any functionality or spacing, but they may weaken the surrounding structure and reduce the overall weight they can support. Printed in Prusament PETG at 0.2mm, with no supports - as recommended in the original.