[PatternMatching] Add generic API for matching constants using custom conditions

The new API is:
    `m_CheckedInt(Lambda)`/`m_CheckedFp(Lambda)`
        - Matches non-undef constants s.t `Lambda(ele)` is true for all
          elements.
    `m_CheckedIntAllowUndef(Lambda)`/`m_CheckedFpAllowUndef(Lambda)`
        - Matches constants/undef s.t `Lambda(ele)` is true for all
          elements.

The goal with these is to be able to replace the common usage of:
```
    match(X, m_APInt(C)) && CustomCheck(C)
```
with
```
    match(X, m_CheckedInt(C, CustomChecks);
```

The rationale if we often ignore non-splat vectors because there are
no good APIs to handle them with and its not worth increasing code
complexity for such cases.

The hope is the API creates a common method handling
scalars/splat-vecs/non-splat-vecs to essentially make this a
non-issue.

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