[WIP][API] Add data type functions

[barry-jin]

Description

can_cast, finfo, iinfo, type_result

• can_cast fall back to official numpy
• type_result is removed from fallback.py since we will have our own type promotion rules.
• finfo, iinfo will follow the data-api-standard design.

Checklist

Essentials

• PR's title starts with a category (e.g. [BUGFIX], [MODEL], [TUTORIAL], [FEATURE], [DOC], etc)
• Changes are complete (i.e. I finished coding on this PR)
• All changes have test coverage
• Code is well-documented

Changes

• Feature1, tests, (and when applicable, API doc)
• Feature2, tests, (and when applicable, API doc)

Comments

• If this change is a backward incompatible change, why must this change be made.
• Interesting edge cases to note here

[mxnet-bot]

Hey @barry-jin , Thanks for submitting the PR
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[barry-jin]

@mxnet-bot run ci [unix-cpu, windows-gpu]

[mxnet-bot]

Jenkins CI successfully triggered : [unix-cpu, windows-gpu]

[barry-jin]

merged into #20725