More Investigate DateOnly and TimeOnly

[xuzhg]

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Assemblies affected

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Reproduce steps

• Fixes #2293: Enable DateOnly and TimeOnly #3078 enables DateOnly and TimeOnly in OData.Core.

In the next major version, we'd put more investigation on this part at:

1. Support them fully in OData.Client, for example the OData connected service to support them
2. Remove Date and TimeOfDay
3. Then, remove the casting between 'Date & TimeOfDay' and 'DateOnly & TimeOnly'.

Expected result

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Actual result

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Additional detail

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