engineering: Allocate engineering/misc into a separate group

conf.d/engineering.mk

 mixin/alt-engineering-install: engineering_groups = $(addprefix engineering/,\
-	05-apps 2d-cad 3d-cad 3d-printer apcs cam cnc eda)
+	05-apps 2d-cad 3d-cad 3d-printer apcs cam cnc eda misc)
 
 mixin/alt-engineering-live: engineering_lists = $(addprefix engineering/,\
 	2d-cad 3d-cad 3d-printer apcs cam cnc eda misc)

pkg.in/groups/engineering/05-apps.directory

@@ -2,6 +2,5 @@
 Encoding=UTF-8
 Type=Directory
 Name=Engineering applications
-X-Alterator-PackageList=engineering/misc
 X-Alterator-Required=no
 Name[ru_RU]=Инженерные приложения

pkg.in/groups/engineering/misc.directory

+[Desktop Entry]
+Type=Directory
+X-Alterator-PackageList=engineering/misc
+X-Alterator-Required=no
+Categories=Engineering
+X-Alterator-Parent=engineering/05-apps
+Name=Miscellanous engineering applications
+Name[ru_RU]=Другие инженерные приложения
+Comment=Engineering applications not in any category.
+Comment[ru_RU]=Инженерные приложения, невошедшие ни в одну категорию.