Motivation

The following statement currently shows a warning:

>> timestamps = types.untyped.DataPipe('data', 1:10, 'maxSize', inf);
>> ts = types.core.TimeSeries('timestamps', timestamps);

Warning: Invalid shape for property "timestamps". The maxSize of this DataPipe has a valid shape but the actual size of the dataPipe is not valid: Value of size [1
10] is invalid.  Must be one of:
    - Rank 1 with dimensions of size: [Any] 
> In types.util.validateShape (line 52)
In types.core/TimeSeries/validate_timestamps (line 246)
In types.core/TimeSeries/set.timestamps (line 193)
In types.core.TimeSeries (line 111) 

However, the actual shape can not be 1D for MATLAB vectors, and this PR fixes this by not enforcing 1D shape when validating the actual shape of a DataPipe object

How to test the behavior?

This should not display a warning:

>> timestamps = types.untyped.DataPipe('data', 1:10, 'maxSize', inf);
>> ts = types.core.TimeSeries('timestamps', timestamps);

Checklist

• Have you ensured the PR description clearly describes the problem and solutions?
• Have you checked to ensure that there aren't other open or previously closed Pull Requests for the same change?
• If this PR fixes an issue, is the first line of the PR description fix #XX where XX is the issue number?