ui: tape: add Edit Windows

includes edit windows for
* Drives
* Changers
* Media Pools
* Labeling Media
* Making new Tape Backups

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>

www/tape/window/LabelMedia.js

@@ -0,0 +1,47 @@
+Ext.define('PBS.TapeManagement.LabelMediaWindow', {
+    extend: 'Proxmox.window.Edit',
+    alias: 'widget.pbsLabelMediaWindow',
+    mixins: ['Proxmox.Mixin.CBind'],
+
+    isCreate: true,
+    isAdd: true,
+    title: gettext('Label Media'),
+    submitText: gettext('OK'),
+
+    showProgress: true,
+
+    items: [
+	{
+	    xtype: 'displayfield',
+	    fieldLabel: gettext('Drive'),
+	    cbind: {
+		value: '{driveid}',
+	    },
+	},
+	{
+	    fieldLabel: gettext('Label'),
+	    name: 'label-text',
+	    xtype: 'proxmoxtextfield',
+	    allowBlank: false,
+	},
+	{
+	    xtype: 'pbsMediaPoolSelector',
+	    fieldLabel: gettext('Media Pool'),
+	    name: 'pool',
+	    allowBlank: true,
+	    skipEmptyText: true,
+	},
+    ],
+
+    initComponent: function() {
+	let me = this;
+	if (!me.driveid) {
+	    throw "no driveid given";
+	}
+
+	let driveid = encodeURIComponent(me.driveid);
+	me.url = `/api2/extjs/tape/drive/${driveid}/label-media`;
+	me.callParent();
+    },
+});
+