Test case for MPL identified a bug. Bug has been fixed.
Testing identified another typo!
Added test suites for Cobb-Douglas and General CES case.
Merge branch 'add-ces-tests' into add-ivp-solver
Implemented MPK and MPL for the Leontief cases.
Added an __init__.py script to the testing folder.
Added a bit of code for Leontief special case.
Now using np.isclose instead of abs to test for special cases.
Added an __init__.py script to the testing folder.
Added a bit of code for Leontief special case.
Functioning test cases for 3/5 parts of the Leontief case.
Output elasticities now make use of marginal product formulas.
Fixed merge conflicts.
Finished test suite for ces.py module.