清理引用，将NavigatorServices更改为使用Message来实现导航的切换

Views/VariableTableView.xaml

@@ -0,0 +1,23 @@
+<UserControl x:Class="PMSWPF.Views.VariableTableView"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:ikw="http://schemas.inkore.net/lib/ui/wpf"
+             mc:Ignorable="d"
+             d:DesignHeight="300" d:DesignWidth="300">
+    <ikw:SimpleStackPanel Spacing="5">
+
+        <ikw:SimpleStackPanel Orientation="Horizontal" Spacing="10">
+            <TextBlock Text="变量表名称:" /> <TextBlock Text="默认变量表" />
+        </ikw:SimpleStackPanel>
+        <ikw:SimpleStackPanel Orientation="Horizontal" Spacing="10">
+            <TextBlock Text="变量表描述:" /> <TextBlock Text="默认变量表" />
+        </ikw:SimpleStackPanel>
+        <ikw:SimpleStackPanel Orientation="Horizontal" Spacing="10">
+            <TextBlock Text="所属设备:" /> <TextBlock Text="默认变量表" />
+        </ikw:SimpleStackPanel>
+    </ikw:SimpleStackPanel>
+
+
+</UserControl>