Render toggle icon in case of SwitchLayerAction

src/components/keys/svg-single-icon-key.component.ts

@@ -0,0 +1,24 @@
+import { Component, OnInit, Input } from '@angular/core';
+
+@Component({
+    moduleId: module.id,
+    selector: 'g[svg-single-icon-key]',
+    template:
+    `
+        <svg:use [attr.xlink:href]="icon"
+                [attr.width]="width / 3" [attr.height]="height / 3"
+                [attr.x]="width / 3" [attr.y]="height / 3"
+                fill="white">
+        </svg:use>
+    `
+})
+export class SvgSingleIconKeyComponent implements OnInit {
+    @Input() width: number;
+    @Input() height: number;
+    @Input() icon: string;
+
+    constructor() { }
+
+    ngOnInit() { }
+
+}