Open v0.3 API + debiasing

[splch]

This new version of the API separates job status and metadata from actual results into two different endpoints.

v0.3 also includes support for error_mitigation settings like symmetrization as described in https://arxiv.org/pdf/2301.07233.pdf

This includes:

• add a new error_mitigation parameter on job submission so users can configure it
• add a new aggregation parameter on results that would allow getting results aggregated under the two different methods described in the paper

[CLAassistant]

All committers have signed the CLA.

[Takishima]

Hi, Thank you for submitting this PR. I will try to review it this week but the CI failures will need to be addressed before this can be merged.

[coveralls]

Pull Request Test Coverage Report for Build 7439295148

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.04%) to 98.262%

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Totals
Change from base Build 7439289056:	-0.04%
Covered Lines:	7236
Relevant Lines:	7364

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💛 - Coveralls

[splch]

Hi, Thank you for submitting this PR. I will try to review it this week but the CI failures will need to be addressed before this can be merged.

hey! i got the ionq tests updated :) thanks