Loop cleanup and scikit-learn style parameters (#146)

* Cleaned up looping behavior and aligned some params with scikit-learn.

* Combined quadratic solvers

---------

Co-authored-by: John Halloran <[email protected]>

Author: john-halloran

src/diffpy/snmf/main.py

@@ -21,6 +21,7 @@
 print("Initial Guess (Y0):\n", df_Y0, "\n")
 """
 
+
 my_model = snmf_class.SNMFOptimizer(MM=MM, Y0=Y0, X0=X0, A=A0, components=2)
 print("Done")
 # print(f"My final guess for X: {my_model.X}")