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GH-37592: [MATLAB] Add `NumRows` property to `arrow.tabular.RecordBatch` (#38215)

### Rationale for this change

Currently, there is a `NumColumns` property on `arrow.tabular.RecordBatch`, but no `NumRows` property. It would be useful to be able to query the number of rows in a `RecordBatch`.

This pull request adds a `NumRows` property to `arrow.tabular.RecordBatch` to mirror the design of `arrow.tabular.Table`.

### What changes are included in this PR?

1. Added new `NumRows` property to `arrow.tabular.RecordBatch`

**Example**
```matlab
>> matlabTable = array2table(rand(10, 5))           

matlabTable =

  10x5 table

      Var1        Var2       Var3       Var4        Var5  
    ________    ________    _______    _______    ________

     0.76062     0.12009    0.98898    0.29974     0.42165
     0.64994     0.85116    0.71768    0.58693     0.31061
     0.33593     0.87823    0.87766    0.38206     0.45742
    0.031364      0.8336    0.71528    0.14987      0.3618
      0.5986     0.81193    0.25784    0.21073     0.76715
     0.46493     0.40281    0.39729    0.16737     0.94521
     0.18738     0.16351    0.46437    0.45545     0.40774
     0.67682      0.3577    0.94882     0.1295    0.022501
     0.29368     0.47122    0.99682    0.46011     0.34275
      0.6849    0.064717    0.89719    0.38302      0.4523

>> arrowRecordBatch = arrow.recordBatch(matlabTable);

>> arrowRecordBatch.NumRows

ans =

  int64

   10
```

### Are these changes tested?

Yes.

1. Added `NumRows` test to `tRecordBatch` test class.
3. Updated `EmptyTable` test (renamed to `EmptyRecordBatch`) in `tRecordBatch` test class.
4. Added  `FromArraysNoInputs` test to mirror the `FromArraysNoInputs` test in `tTable` test class.

### Are there any user-facing changes?

Yes.

This pull request adds a new public `NumRows` property to the `arrow.tabular.RecordBatch` class. Users can query the number of rows in an `arrow.tabular.RecordBatch` by accessing the `NumRows` property.

### Future Directions

1. #38214
3. #38213 
* Closes: #37592

Authored-by: Kevin Gurney <kgurney@mathworks.com>
Signed-off-by: Kevin Gurney <kgurney@mathworks.com>