Update saddle point refinement (#90)

Improve python utils (#74)

Fixing bug with incorrect distortion coeff (#69)

Improved rotation vectors averaging (#44)

* Update links to data

* Quaternion averaging implementation

* Replacing rotation averaging in all places

* Fixing quaternion to rot matrix conversion and unit tests

* Applying linters

* Correctly handling antipodal configuration

* Exposing rotation averaging method to config

fix opencv init intrinsic calib (#27)

Adding ISSUE_TEMPLATE (#21)