feat(aliases): R/RA/RE/REA for REDRAW/REGEN; register verbs

assets/ocad.pgp

@@ -130,6 +130,10 @@ UN,       *UNITS
 TP,       *TOOLPALETTES
 SSM,      *SHEETSET
 HI,       *HIDE
+R,        *REDRAW
+RA,       *REDRAWALL
+RE,       *REGEN
+REA,      *REGENALL
 3O,       *3DORBIT
 ORBIT,    *3DORBIT
 MV,       *MVIEW