v0.5.0_debug_01_testing

[bdiptesh]

Description

• Added Bates & Granger module
• Added GAM module
• Performance tweaks in metrics and haversine methods

Type of change

Please select option(s) that are relevant.

• [x] New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• [x] Unit/Integration tests in the code
• [x] Code runs locally without any warnings/errors with test files

Checklist:

• [x] New and existing unit tests pass locally with my changes
• [x] I have added tests including corner cases that prove my fix is effective or that my feature works
• [x] I have run tests before committing
• [x] My code follows the contribution guidelines of this project
• [x] I have performed a self & peer review of my code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings/errors
• [x] Any dependent changes have been merged and published in downstream modules
• [x] Left side is NOT stable branch. Example: Left side is testing branch
• [x] Right side is YOUR branch. Example: feature_36