Drawj2d 1.3.0 released

This release increases pdf accuracy and brings commands for hatching curved shapes. An output type wpng for png with white background and no transparency has been added. For reMarkable users there is a new output type rmn (RCU).

Changes:
- new output file type wpng for png with white background and no transparency
- new output file type rmn (notebook files in a tar)
- new command arc2 (arc defined by starting, tangential and end points)
- new commands geom.topolyline quadcurve|cubiccurve|arc|arc2
- new command herepolar (rp)
- new dimline styles: arrow|none
- command pen enhanced: returns previous "colour style width"
- increased pdf accuracy (mode freeHep), relevant if coordinate origin has an offset
- library update: evalex