adding PerfForesightConsumerTypeFast (#774)

* init commit

baseline PerfForesightConsumerType for comparison

* Update ConsIndShockFastModel.py

add fast solver for PerfForesight model

* Update ConsIndShockModel.py

reformat using "black" and add __eq__ method using parameter dictionary

* Update ConsIndShockModel.py

add __eq__ to ConsumerSolution

* create test_PerfForesightFastConsumerType.py

also change code in ConsIndShock for correcting failed tests

* Update requirements.txt

add interpolation

* small review changes

- remove __future__ as econ-ark is only python3
- fix __all__
- make helper functions private

* Create ConsIndShockFastModel.rst

generate documentation

* Update test_PerfForesightFastConsumerType.py

remove `__eq__` tests

* rename files and objects

move `Fast` to end of name

* Update ConsIndShockModel.py

remove `__eq__`, will be moved to own PR

* Update ConsIndShockModel.py

remove `__eq__` modifications from this PR

* Update requirements.txt

fix requirements error

* Update ConsIndShockModel.py

revert formatting changes to resolve conflicts

* Update requirements.txt

* Update CHANGELOG.md

Co-authored-by: Christopher Llorracc Carroll <[email protected]>
Co-authored-by: Mridul Seth <[email protected]>

.gitignore

@@ -282,4 +282,5 @@ nate-notes/
 *_region_*.*
 
 # VSCode 
-settings.json
+settings.json
+.idea

Documentation/CHANGELOG.md

@@ -15,6 +15,7 @@ Release Data: TBD
 #### Major Changes
 
 * Namespace variables for the Market class [#765](https://github.com/econ-ark/HARK/pull/765)
+* We now have a Numba based implementation of PerfForesightConsumerType model available as PerfForesightConsumerTypeFast [#774](https://github.com/econ-ark/HARK/pull/774)
 
 #### Minor Changes 
 

Documentation/reference/ConsumptionSaving/ConsIndShockFastModel.rst

@@ -0,0 +1,7 @@
+ConsIndShockFastModel
+----------------------------
+
+.. automodule:: HARK.ConsumptionSaving.ConsIndShockFastModel
+   :members:
+   :undoc-members:
+   :show-inheritance: