Allow overriding target on device

[Cynocracy]

Alternative to #49 for supporting more targets.

[Cynocracy]

Ready for review! (assuming tests are green here like they are locally :))

[josh146]

Thanks @Cynocracy! I've tagged @albi3ro to have a look

Edit: the coverage is reduced as the integration test is currently skipped on forked PRs due to security issues.

[codecov]

Codecov Report

Merging #50 (f92a3db) into master (f69916a) will decrease coverage by 2.10%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #50      +/-   ##
==========================================
- Coverage   88.77%   86.66%   -2.11%     
==========================================
  Files           5        5              
  Lines         285      285              
==========================================
- Hits          253      247       -6     
- Misses         32       38       +6     

Impacted Files	Coverage Δ
pennylane_ionq/device.py	90.38% <100.00%> (-2.89%)	⬇️
pennylane_ionq/api_client.py	93.08% <0.00%> (-1.89%)	⬇️

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[antalszava]

Looks good, thank you! 💯 The integration tests execute well locally except for 2 tests. The issues are, however, unrelated to the changes in this PR as they seem to fail on master too.

[antalszava]

Overriding the check as the coverage matches the coverage on master locally.

[Cynocracy]

Thank you!