Adding ufunc class to the numpy frontend

[fnhirwa]

Hey @fspyridakos

I finished the initial implementation of the np.ufunc class in the numpy frontend.
Waiting for your review after that we start calling the frontend functions that are instances of np.ufunc using ufunc(func_name).

With the implementation below I was able to implement some of a few class methods:

• call()
• nin()
• not()
• nargs()

With their unit tests along, other methods associated with this class can take time to implement as they are complex 🙂. I think we can make these methods open for contribution or work on them progressively.

Thanks😊

[fspyridakos]

Yup looks good, go ahead and start initialising the ufuncs in the main __init__, again we might need to rename the current function names to prevent name errors