Add missing /drawsize command
There is a new command into mSL "/drawsize" it would nice to see that also supported.
Added /drawsize @ <w h> that sets the bitmap size for picture windows
up to a maximum of 8192 x 8192 pixels. Note: 1) a bitmap cannot be
sized to less than the largest point that has been drawn on it (which
can be reset with /clear), 2) once a size has been set, changing the
window size will not resize it to less than the set size.