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GH-35550: [MATLAB] Add public `toMATLAB` method to `arrow.array.Array` for converting to MATLAB types (#35551)

### Rationale for this change

In order to allow clients to write generic code for different concrete `arrow.array.Array` subclasses in MATLAB, it would be helpful to have one generic `toMATLAB` method. `toMATLAB` would convert the `arrow.array.Array` into a corresponding MATLAB type.

For example, `arrow.array.Float64Array` would be converted to a MATLAB `double` array.

```matlab
>> doubleMatlabArray = toMATLAB(float64ArrowArray) % Convert the arrow.array.Float64Array to a MATLAB double array
```
### What changes are included in this PR?

1. Added a public `toMATLAB` method to the `arrow.array.Array` superclass.

Example of using `toMATLAB` on an `arrow.array.Float64Array`:

```matlab
>> arrowArray = arrow.array.Float64Array(1:10)

arrowArray = 

[
  1,
  2,
  3,
  4,
  5,
  6,
  7,
  8,
  9,
  10
]
>> matlabArray = toMATLAB(arrowArray)

matlabArray =

     1
     2
     3
     4
     5
     6
     7
     8
     9
    10

>> class(matlabArray)

ans =

    'double'

```

### Are these changes tested?

1. Yes, we added tests for `toMATLAB` to `tFloat32Array.m` and `tFloat64Array.m`.
2. This was qualified on a Debian 11 machine.

### Future Directions

1. Move the `toMATLAB` tests to the shared test utility class (i.e. #35537).

### Notes

1. Thanks to @ sgilmore10 for her help with this pull request!
* Closes: #35550

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