cad/k40-whisperer: Update to 0.58

Changes:	https://www.scorchworks.com/K40whisperer/k40whisperer.html
Changes:	https://www.scorchworks.com/K40whisperer/k40whisperer_change_log.html

cad/k40-whisperer/Makefile

 PORTNAME=	k40-whisperer
-DISTVERSION=	0.57
+DISTVERSION=	0.58
 CATEGORIES=	cad python
 MASTER_SITES=	http://www.scorchworks.com/K40whisperer/
 DISTNAME=	K40_Whisperer-${DISTVERSION}_src

cad/k40-whisperer/distinfo

-TIMESTAMP = 1618520716
-SHA256 (K40_Whisperer-0.57_src.zip) = 15b6689e8a863e25a897dd75bde862553805624d4f244adfc2823666f1a2430b
-SIZE (K40_Whisperer-0.57_src.zip) = 201590
+TIMESTAMP = 1619444696
+SHA256 (K40_Whisperer-0.58_src.zip) = ae4a3cc67eeb3514355a62fac92d4b3dc77ec883d9fa18e99d298ed31cf72bd3
+SIZE (K40_Whisperer-0.58_src.zip) = 201614