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GH-35537: [MATLAB] Create shared test class utility for numeric arrays (#35556)

### Rationale for this change
To avoid writing duplicate tests, we created an an Abstract Test Class called `hNumericArray` which defines tests that can be shared by all numeric array types. Concrete test classes can inherit from this class to automatically get the shared test points. 

### What changes are included in this PR?

1. Defined new abstract test class `hNumericArray`
2. Modified `tFloat32Array` to inherit from `hNumericArray`
3. Modified `tFloat64Array` to inherit from `hNumericArray`

### Are these changes tested?

1. Qualified the tests still pass on macOS.

### Are there any user-facing changes?
There are no user-facing changes in this PR. This PR only has test-related changes.

* Closes: #35537

Lead-authored-by: Sarah Gilmore <sgilmore@mathworks.com>
Co-authored-by: sgilmore10 <74676073+sgilmore10@users.noreply.github.com>
Co-authored-by: Sutou Kouhei <kou@cozmixng.org>
Co-authored-by: Kevin Gurney <kgurney@mathworks.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>