Favicons - fixes #1547

Added:
-Android homescreen
-Windows Metro
-macOS Safari (touchbar and Pinned tab)
-Opera Browser

Refreshed:
-iOS Web Clip

images/icons/browserconfig.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<browserconfig>
+    <msapplication>
+        <tile>
+            <square150x150logo src="/images/icons/mstile-150x150.png"/>
+            <TileColor>#04bd00</TileColor>
+        </tile>
+    </msapplication>
+</browserconfig>

images/icons/site.webmanifest

@@ -0,0 +1,19 @@
+{
+    "name": "Opencaching",
+    "short_name": "Opencaching",
+    "icons": [
+        {
+            "src": "/images/icons/android-chrome-192x192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "/images/icons/android-chrome-512x512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        }
+    ],
+    "theme_color": "#ffffff",
+    "background_color": "#ffffff",
+    "display": "standalone"
+}

tpl/stdstyle/common/main.tpl.php

@@ -14,8 +14,17 @@
   <title><?=$tpl_subtitle?>{title}</title>
 
   <link rel="shortcut icon" href="/images/<?=$config['headerFavicon']?>">
-  <link rel="apple-touch-icon-precomposed" href="/images/oc_logo_144.png">
-
+  <link rel="apple-touch-icon" sizes="180x180" href="/images/icons/apple-touch-icon.png">
+  <link rel="icon" type="image/png" sizes="32x32" href="/images/icons/favicon-32x32.png">
+  <link rel="icon" type="image/png" sizes="16x16" href="/images/icons/favicon-16x16.png">
+  <link rel="manifest" href="/images/icons/site.webmanifest">
+  <link rel="mask-icon" href="/images/icons/safari-pinned-tab.svg" color="#5bbad5">
+  <meta name="apple-mobile-web-app-title" content="Opencaching">
+  <meta name="application-name" content="Opencaching">
+  <meta name="msapplication-TileColor" content="#04bd00">
+  <meta name="msapplication-config" content="/images/icons/browserconfig.xml">
+  <meta name="theme-color" content="#ffffff">
+
   <link rel="stylesheet" type="text/css" media="screen" href="<?=$view->screenCss?>">
   <link rel="stylesheet" type="text/css" media="print" href="<?=$view->printCss?>">