Added matplotlib (for example files) and pytest (for tests) to env file
Added matplotlib (for example files) and pytest (for tests) to env file

AeroPython/PyFME,miqlar/PyFME,JuanMatSa/PyFME,aeroaks/PyFME,olrosales/PyFME,Juanlu001/PyFME,AlexS12/PyFME