[SPARK-29746][ML] Implement validateInputType in Normalizer/ElementwiseProduct/PolynomialExpansion

[huaxingao]

What changes were proposed in this pull request?

This PR implements validateInput in ElementwiseProduct, Normalizer and PolynomialExpansion.

Why are the changes needed?

UnaryTransformer has abstract method validateInputType and call it in transformSchema, but this method is not implemented in ElementwiseProduct, Normalizer and PolynomialExpansion.

Does this PR introduce any user-facing change?

No

How was this patch tested?

Existing tests

[SparkQA]

Test build #113220 has finished for PR 26388 at commit 432bd59.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[huaxingao]

@srowen One more to review. Thanks!

[zhengruifeng]

retest this please

[SparkQA]

Test build #113257 has finished for PR 26388 at commit 432bd59.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[zhengruifeng]

retest this please

[SparkQA]

Test build #113293 has finished for PR 26388 at commit 432bd59.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[srowen]

Merged to master

[huaxingao]

Thanks a lot! @srowen @zhengruifeng