More readable WMI error parsing

[Laberbear]

A lot of laptops and other machines don't support the MSAcpi_ThermalZoneTemperature WMI class and will cause this library to crash.

While this is probably the best way to handle this, atleast this common WMI error should be turned into something more usable by the library I think, since it could be a throwback for anyone just wanting the data.

Part of the current error message:

wmi.x_wmi: <x_wmi: Unexpected COM Error (-2147217396, 'OLE error 0x8004100c', None, None)>

List of WMI errors: https://msdn.microsoft.com/en-us/library/aa394559%28VS.85%29.aspx