All icons in own repo and included as a submodule (#11548)

* add icons submodule

* replace path

* change submodule url

* fix JSONTest

* fix integration tests

* update icon submodules

* fix preg_match

* fix remaining system tests

* better match for non dist icon files

* fix .gitmodules

* update icon submodule

* Fixed custom dimension test

* Do not completely fail when GD not enabled

* Fix http test + refactor checklist

* Refactored the code into a method

* Changed icon path refs https://github.com/piwik/piwik/pull/11383

* System tests

* Update valid UI tests

* Fix integration test

10 files changed, 5 insertions, 5 deletions

diff --git a/plugins/SEO/Metric/Alexa.php b/plugins/SEO/Metric/Alexa.php
index ef9a73a5ec..7192113886 100644
--- a/plugins/SEO/Metric/Alexa.php
+++ b/plugins/SEO/Metric/Alexa.php
@@ -42,7 +42,7 @@ class Alexa implements MetricsProvider
             $value = null;
         }
 
-        $logo = "plugins/SEO/images/alexa.com.png";
+        $logo = "plugins/Morpheus/icons/dist/SEO/alexa.com.png";
         $link = self::LINK . urlencode($domain);
 
         return array(
diff --git a/plugins/SEO/Metric/Bing.php b/plugins/SEO/Metric/Bing.php
index 325af69492..e345d19cce 100644
--- a/plugins/SEO/Metric/Bing.php
+++ b/plugins/SEO/Metric/Bing.php
@@ -46,7 +46,7 @@ class Bing implements MetricsProvider
             $pageCount = null;
         }
 
-        $logo = "plugins/SEO/images/bing.com.png";
+        $logo = "plugins/Morpheus/icons/dist/SEO/bing.com.png";
 
         return array(
             new Metric('bing-index', 'SEO_Bing_IndexedPages', $pageCount, $logo, null, null, 'General_Pages')
diff --git a/plugins/SEO/Metric/Dmoz.php b/plugins/SEO/Metric/Dmoz.php
index b1f3567f06..c14792aa31 100644
--- a/plugins/SEO/Metric/Dmoz.php
+++ b/plugins/SEO/Metric/Dmoz.php
@@ -53,7 +53,7 @@ class Dmoz implements MetricsProvider
             $value = null;
         }
 
-        $logo = "plugins/SEO/images/dmoz.org.png";
+        $logo = "plugins/Morpheus/icons/dist/SEO/dmoz.org.png";
 
         return array(
             new Metric('dmoz', 'SEO_Dmoz', $value, $logo)
diff --git a/plugins/SEO/Metric/DomainAge.php b/plugins/SEO/Metric/DomainAge.php
index 836011b12e..e08dc3fa98 100644
--- a/plugins/SEO/Metric/DomainAge.php
+++ b/plugins/SEO/Metric/DomainAge.php
@@ -62,7 +62,7 @@ class DomainAge implements MetricsProvider
         }
 
         return array(
-            new Metric('domain-age', 'SEO_DomainAge', $value, 'plugins/SEO/images/whois.png')
+            new Metric('domain-age', 'SEO_DomainAge', $value, 'plugins/Morpheus/icons/dist/SEO/whois.png')
         );
     }
 
diff --git a/plugins/SEO/Metric/Google.php b/plugins/SEO/Metric/Google.php
index c96e7fbb16..76a1a43e30 100644
--- a/plugins/SEO/Metric/Google.php
+++ b/plugins/SEO/Metric/Google.php
@@ -36,7 +36,7 @@ class Google implements MetricsProvider
     {
         $pageCount = $this->fetchIndexedPagesCount($domain);
 
-        $logo = "plugins/SEO/images/google.com.png";
+        $logo = "plugins/Morpheus/icons/dist/SEO/google.com.png";
 
         return array(
             new Metric('google-index', 'SEO_Google_IndexedPages', $pageCount, $logo, null, null, 'General_Pages'),
diff --git a/plugins/SEO/images/alexa.com.png b/plugins/SEO/images/alexa.com.png
deleted file mode 100644
index 0bc9c78887..0000000000
--- a/plugins/SEO/images/alexa.com.png
+++ /dev/null
diff --git a/plugins/SEO/images/bing.com.png b/plugins/SEO/images/bing.com.png
deleted file mode 100644
index 8c798c92ac..0000000000
--- a/plugins/SEO/images/bing.com.png
+++ /dev/null
diff --git a/plugins/SEO/images/dmoz.org.png b/plugins/SEO/images/dmoz.org.png
deleted file mode 100644
index 67349352de..0000000000
--- a/plugins/SEO/images/dmoz.org.png
+++ /dev/null
diff --git a/plugins/SEO/images/google.com.png b/plugins/SEO/images/google.com.png
deleted file mode 100644
index f860e43207..0000000000
--- a/plugins/SEO/images/google.com.png
+++ /dev/null
diff --git a/plugins/SEO/images/whois.png b/plugins/SEO/images/whois.png
deleted file mode 100644
index 642c2a5c92..0000000000
--- a/plugins/SEO/images/whois.png
+++ /dev/null