Pr/40 (#45)

* Added basic Aquastream Hardware Support using HidLibrary from mikeobrien (https://github.com/mikeobrien/HidLibrary)

* * Using hidlibrary from Nuget and fixing ProductName.
* Added missing string Format for Gadget.
* Changed variable names to follow style.
* Added new newlines. Make AquacomputerGroup public accessible.
* Added aquacomputer Icon after they allowed me to use it ;-)

* Corrected spelling
Corrected Variable names

* Removed External/HidLibrary

* Aquastream

- Remove Debug.

* A

- Clean up remains.

GUI/SensorGadget.cs

@@ -558,6 +558,9 @@ namespace OpenHardwareMonitor.GUI {
                 case SensorType.Clock:
                   format = "{0:F0} MHz";
                   break;
+                case SensorType.Frequency:
+                  format = "{0:F0} Hz";
+                  break;
                 case SensorType.Temperature:
                   format = "{0:F1} °C";
                   break;