Fix plotTimeSeriesData function to use numpy arrays for plotting

[soaressgabriel]

Checklist

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Added tests for changed code.
• Updated documentation for changed code.

Description

• Used numpy arrays (DataFrame.to_numpy()) for plotting.

Related Issue

• Resolve CSV File Visualization Error in QGIS Plugin #135.

How Has This Been Tested

• Manual testing was performed by:
  • Setting the provided sample configuration file;
  • Executing RUBEM with provided sample dataset using the configuration file of the previous step;
  • Opening any tabular result to display its graph;
  • Verifying the output against expected results.

Aditional Information

• For more details about the solution see ValueError: Multi-dimensional indexing (e.g. obj[:, None]) is no longer supported. Convert to a numpy array before indexing instead and pandas.DataFrame.values warning and recomendation;

Acknowledgements

• @LINAMARIAOSORIO

[LINAMARIAOSORIO]

Tested!