[ui] icon for add 3D map view action

(cherry picked from commit 90624f0)

images/images.qrc

@@ -640,6 +640,7 @@
         <file>themes/default/processingAlgorithm.svg</file>
         <file>themes/default/processingResult.svg</file>
         <file>themes/default/search.svg</file>
+        <file>themes/default/mActionNew3DMap.svg</file>
         <file>themes/default/mActionNewMap.svg</file>
         <file>themes/default/mActionMapSettings.svg</file>
         <file>themes/default/mActionLockExtent.svg</file>

images/themes/default/mActionNew3DMap.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="24" width="24"><defs><linearGradient id="a"><stop offset="0" stop-color="#bfbfbf"/><stop offset="1" stop-color="#e1e1e1"/></linearGradient><linearGradient xlink:href="#a" id="b" x1="3.123" y1="12.47" x2="8.275" y2="14.921" gradientUnits="userSpaceOnUse"/></defs><path d="M21.221 4.805l-.983.438-3.164-.43-2.547.128L9.88 4.39 6.454 6.596 5.01 6.583l-1.161 4.66L.975 15.68l3.144.064 9.54 2.573 7.85-.564z" fill="url(#b)"/><g stroke-width=".5" stroke="#aaa" fill="none"><path d="M13.053 4.715L9.38 8.35 6.72 11.612l-.99 1.817-1.55 2.315M17.257 5.041l-4.394 5.173L11 12.936l-.952 4.106M20.238 5.243l-.482 3.423-2.192 3.091-2.156 1.624-.758 2.046-.736 2.89"/><path d="M4.06 11.594l2.661.018L11 12.936c2.195-.35 4.378-.78 6.565-1.179l3.63 3.249M6.217 6.886l4.044.6 2.682 2.523 6.813-1.343 1.794 1.944"/></g><path d="M21.221 4.805l-1.415.33-2.732-.322-2.547.128L9.88 4.39 6.454 6.596 5.01 6.583l-1.161 4.66L.975 15.68l3.144.064 9.54 2.573 7.85-.564z" fill="none" stroke="#9a9a9a" stroke-linecap="round" stroke-linejoin="round"/><g transform="translate(33)"><rect y="13" x="-20" width="11" rx="2.011" height="11" ry="2.011" fill="#c4a000"/><path d="M-15 14v2.063a2.501 2.501 0 0 0-1.375.78l-1.781-1.03-.5.874 1.781 1.032A2.46 2.46 0 0 0-17 18.5c0 .275.043.534.125.781l-1.781 1.032.5.875 1.781-1.032c.353.4.833.67 1.375.782V23h1v-2.063a2.501 2.501 0 0 0 1.375-.78l1.781 1.03.5-.875-1.781-1.03A2.46 2.46 0 0 0-12 18.5a2.46 2.46 0 0 0-.125-.781l1.781-1.032-.5-.875-1.781 1.032c-.353-.4-.833-.67-1.375-.782V14zm.5 3.5a1 1 0 1 1 0 2 1 1 0 0 1 0-2z" fill="#fcffff"/><path d="M-19 19l9-.01v-2C-10 14-11 14-14.5 14s-4.5 0-4.5 3v2z" opacity=".3" fill="#fcffff" fill-rule="evenodd"/></g></svg>

src/ui/qgisapp.ui

@@ -2974,6 +2974,10 @@ Acts on currently active editable layer</string>
    </property>
   </action>
   <action name="mActionNew3DMapCanvas">
+   <property name="icon">
+    <iconset resource="../../images/images.qrc">
+     <normaloff>:/images/themes/default/mActionNew3DMap.svg</normaloff>:/images/themes/default/mActionNew3DMap.svg</iconset>
+   </property>
    <property name="text">
     <string>New &amp;3D Map View</string>
    </property>