Update Result class to work with XCC

[thisac]

Context: As part of the XCC integration, the Result class needs to be updated.

Description of the Change:

• The Result class now only takes a result dictionary containing all samples.
• The samples property returns the first entry in the result dictionary (which should be the pure samples).
• all_samples have been renamed to samples_dict.
• Result._is_stateful has been removed in favour of self._state is not None.

Benefits: Things work better together with XCC and the dictionary type samples that will be returned from the HW.

Possible Drawbacks:

• The samples property returns the first entry in the result dictionary assuming they are the pure samples).
• Result._is_stateful has been removed, and does not seem to have a clear use case.

Related GitHub Issues: None

[codecov[bot]]

Codecov Report

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