Native vector width device descriptors

[oleksandr-pavlyk]

Exposed DPCTLDevice_GetNativeVectorWidthChar and friends in DPCTLSyclInterface library.

Added dpctl.SyclDevice properties to query native vector widths for different types per SYCL spec. Supported types align with preferred_vector_width_* properties and include char, short, int, long, float, double, and half.

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[mingjie-intel]

The changes looks good. Thanks!

[github-actions]

View rendered docs @ https://intelpython.github.io/dpctl/pulls/1075/index.html

[coveralls]

Coverage: 82.304% (+0.03%) from 82.269% when pulling a7c468c on native-vector-width-device-descriptors into 0a8abd8 on master.

[github-actions]

Array API standard conformance tests for dpctl=0.14.1dev2=py310h41425db_21 ran successfully.
Passed: 32
Failed: 802
Skipped: 280

[oleksandr-pavlyk]

@mingjie-intel I had added checks for new device descriptor properties but did not register them with the fixture.

[github-actions]

Array API standard conformance tests for dpctl=0.14.1dev2=py310h41425db_22 ran successfully.
Passed: 33
Failed: 801
Skipped: 280

[github-actions]

Deleted rendered PR docs from intelpython.github.com/dpctl, latest should be updated shortly. 🤞

[github-actions]

Array API standard conformance tests for dpctl=0.14.1dev2=py310h41425db_22 ran successfully.
Passed: 33
Failed: 801
Skipped: 280