Implement type checking w/in the EFIToolsKBaseImpl.py and wrapper codes

[rbdavid]

At the end of each EFIToolsKBase class method is this code:

# At some point might do deeper type checking...
if not isinstance(output, dict):
    raise ValueError('Method run_EFIToolsKBase return value output is not type dict as required.')

I feel like I read somewhere (struggling to find where though) that type checking of input and output is strongly suggested for KBase development. Currently these class methods do no checking of key input/outputs, so very few errors will be detected. Albeit, the code should not be producing incorrectly typed values, its still good practice to do some checking.

[rbdavid]

Once updates to the root spec file have been finished ( #41 ), add code to each method in the Impl.py script to check input and output data.