[MATLAB] Create shared test class utility for numeric arrays.

[sgilmore10]

Describe the enhancement requested

Many of the unit tests we'll write for numeric arrays will be identical. We should write a shared test class utility called hNumericArray.m that our test classes for numeric arrays - e.g. tFloat64Arrray.m - can inherit from.

Component(s)

MATLAB

[sgilmore10]

take