#10 TSS1.2: Implement NV Data objects

[Kent Yoder]

This is a fairly large undertaking, with work being:

* Adding a new TSP object class
* Adding sections in the get/set attribute area to
manipulate this class
* Implementing all Tspi_NV* functions
* Implementing all Tcsi_NV* functions

[Kent Yoder]

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James Xu and others from Intel submitted this feature, first included in trousers 0.3.0.