Add "verbose" option for ResourceTools.py

[grgmiller]

When fetching resource files, using PySAM.ResourceTools.FetchResourceFiles(), the output is quite verbose, printing many statements such as:

• print('\nStarting data download for {} using {} thread workers.'.format(self.tech, self.workers))
• print("Downloading file from WIND Toolkit for {}, {}.".format(lat, lon))
• print('Success! File downloaded to {}.'.format(file_path))
• print("Getting list of available NSRDB files for {}, {}.".format(lat, lon))
• print(data_url)

For downloading a single file, this is fine, but when running PySAM to download dozens or hundreds of resource files, these outputs are overwhelming.

I wanted to suggest implementation of a verbose parameter for the FetchResourceFiles() class, which would silence all of these print statements if set to False (it could be left as True as a default. This could be implemented by preceding the print statements with if verbose == True: print().

Thank you!

[grgmiller]

Thank you!