Added combobox for nodes so msg combobox isnt so long

Added disabled filenames in node combobox so you can understand what is what
Added node column to table
Made table columns sortable so you can sort by node name or message name

Want to make table fixed width font capable
Want to make table rearrangable
Want to make table rows shorter to fix more info in a window
Want to make it possible to have multiple signal viewer windows
Want to add ability to click on signals and add them to graphs like the main window

ui/signalviewerwindow.ui

@@ -18,8 +18,11 @@
     <layout class="QVBoxLayout" name="verticalLayout_2">
      <item>
       <widget class="QTableWidget" name="tableViewer">
+       <property name="sortingEnabled">
+        <bool>true</bool>
+       </property>
        <property name="columnCount">
-        <number>2</number>
+        <number>3</number>
        </property>
        <attribute name="horizontalHeaderDefaultSectionSize">
         <number>300</number>
@@ -32,6 +35,7 @@
        </attribute>
        <column/>
        <column/>
+       <column/>
       </widget>
      </item>
      <item>
@@ -45,6 +49,16 @@
    </item>
    <item>
     <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <widget class="QLabel" name="label_3">
+       <property name="text">
+        <string>Node</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QComboBox" name="cbNodes"/>
+     </item>
      <item>
       <widget class="QLabel" name="label">
        <property name="text">