Add smack-logo-plain-minimized.svg using scour

Scour: https://github.com/scour-project/scour

resources/logo/.gitignore

@@ -1 +1,2 @@
 /*.png
+/smack-logo-plain-minimized.svg

resources/logo/Makefile

@@ -1,6 +1,6 @@
 .PHONY: all clean
 
-all: smack-logo-plain.png smack-logo-plain-icon-16x16.png smack-logo-plain-icon-32x32.png smack-logo-plain-icon-128x128.png
+all: smack-logo-plain.png smack-logo-plain-icon-16x16.png smack-logo-plain-icon-32x32.png smack-logo-plain-icon-128x128.png smack-logo-plain-minimized.svg
 
 smack-logo-plain.png: smack-logo-plain.svg
 	convert $< $@
@@ -14,5 +14,9 @@ smack-logo-plain-icon-32x32.png: smack-logo-plain.svg
 smack-logo-plain-icon-128x128.png: smack-logo-plain.svg
 	convert -resize 128x128 $< $@
 
+smack-logo-plain-minimized.svg: smack-logo-plain.svg
+	scour -i $< -o $@ --enable-viewboxing --enable-id-stripping --enable-comment-stripping --shorten-ids --indent=none
+
 clean:
-	rm -rf *.png
+	rm -f *.png
+	rm -f smack-logo-plain-minimized.svg