PDA旋转，不重置activity；采取配置化，是否强制竖屏、强制横屏

app/src/main/assets/demo/index.html

@@ -104,7 +104,8 @@
            var data=JSON.stringify({
           "address":document.getElementById('address').value,
           "port":document.getElementById('port').value,
-          "path":document.getElementById('path').value
+          "path":document.getElementById('path').value,
+          "screen_rotation":document.getElementById('screen_rotation').value
          });
          window.NetworkSettingEngine.saveSetting(data);
          window.View.reload();
@@ -130,6 +131,10 @@
                 <label>访问子路径</label>
                 <input id="path" name="path" placeholder="访问子路径">
             </div>
+            <div class="net-list">
+                <label>屏幕旋转</label>
+                <input id="screen_rotation" value="3" name="screen_rotation" placeholder="1:强制竖屏；2:强制横屏；3:横竖都转">
+            </div>
         </div>
         <div class="operation">
             <button style="background: #1989fa;" onclick="saveSetting()">保存</button>