high resolution SEO icons

https://github.com/piwik/piwik/pull/11234

convert.sh

@@ -1,8 +1,8 @@
 #!/bin/bash
 shopt -s globstar
-size=48
 
 for i in src/**/*.{png,gif,jpg,ico}; do
+    size=48
     absDirname=$(dirname "$i")
     origFilename=$(basename "$i")
     code=${origFilename%.*}
@@ -28,6 +28,10 @@ for i in src/**/*.{png,gif,jpg,ico}; do
             i=$newIcon
         fi
     fi
+    if echo "$i" | grep "SEO" # if SEO image -> 72px(https://github.com/piwik/piwik/pull/11234)
+    then
+        size=72
+    fi
     # if file (or symlink) -> didn't get deleted
     if [ -e "$i" ]
     then

src/SEO/images/alexa.com.png.source

@@ -0,0 +1 @@
+https://upload.wikimedia.org/wikipedia/commons/archive/5/5f/20140513030939%21A_Alexa_internet_logo.PNG

src/SEO/images/bing.com.png.source

@@ -0,0 +1 @@
+https://commons.wikimedia.org/wiki/File:Bing_logo_\(2016\).svg

src/SEO/images/dmoz.com.png.source

@@ -0,0 +1 @@
+https://commons.wikimedia.org/wiki/File:DMOZ_icon.svg

src/SEO/images/google.com.png.source

@@ -0,0 +1 @@
+https://commons.wikimedia.org/wiki/File:Google_%22G%22_Logo.svg