v0.5.0

Changelog

1. Statistical modules:
   1. Time series - added BatesGranger method
   2. Performance tweaks in metrics and haversine modules

What's Changed

• v0.4.1_testing_stable by @MadhuTangudu in #36
• maintenance_38_testing by @bdiptesh in #39
• v0.5.0_testing_stable by @bdiptesh in #40

Full Changelog: v0.4.1...v0.5.0