Add detection for Google Cloud (#2322)

* Add detection for Google Cloud

This can be verified in its [documentation](https://cloud.google.com/cdn/docs/support),
and on [this website](https://mobile.lemonde.fr/pixels/article/2018/05/23/qu-est-ce-que-le-protocole-https-que-vient-d-adopter-le-site-du-monde_5303084_4408996.html).

* Escape a dot

src/apps.json

@@ -3641,6 +3641,16 @@
       "icon": "Google Charts.png",
       "website": "http://developers.google.com/chart/"
     },
+    "Google Cloud": {
+      "cats": [
+        31
+      ],
+      "headers": {
+        "Via": "^1\\.1 google$"
+      },
+      "icon": "google_cloud.svg",
+      "website": "https://cloud.google.com"
+    },
     "Google Code Prettify": {
       "cats": [
         19

src/icons/google_cloud.svg

@@ -0,0 +1 @@
+<svg id="Art" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 35 28"><defs><style>.cls-1{fill:#ea4335;}.cls-2{fill:#4285f4;}.cls-3{fill:#34a853;}.cls-4{fill:#fbbc05;}.cls-5{fill:#5f6368;}</style></defs><title>Cloud_Logo_Nav</title><path class="cls-1" d="M21.85,7.41l1,0,2.85-2.85.14-1.21A12.81,12.81,0,0,0,5,9.6a1.55,1.55,0,0,1,1-.06l5.7-.94s.29-.48.44-.45a7.11,7.11,0,0,1,9.73-.74Z"/><path class="cls-2" d="M29.76,9.6a12.84,12.84,0,0,0-3.87-6.24l-4,4A7.11,7.11,0,0,1,24.5,13v.71a3.56,3.56,0,1,1,0,7.12H17.38l-.71.72v4.27l.71.71H24.5A9.26,9.26,0,0,0,29.76,9.6Z"/><path class="cls-3" d="M10.25,26.49h7.12v-5.7H10.25a3.54,3.54,0,0,1-1.47-.32l-1,.31L4.91,23.63l-.25,1A9.21,9.21,0,0,0,10.25,26.49Z"/><path class="cls-4" d="M10.25,8A9.26,9.26,0,0,0,4.66,24.6l4.13-4.13a3.56,3.56,0,1,1,4.71-4.71l4.13-4.13A9.25,9.25,0,0,0,10.25,8Z"/></svg>