* Add initial attempt at using mamba-based github actions

* Update sphinx html generation in github actions

mambaforge container doesn't have Make installed

* Try activating mamba environment in github action CI

* Fix conda activation in github actions CI

* Add conda init bash to github CI

* Try activating conda environment in the next job steps

* Try using setup-miniconda with mambaforge

* Remove miniconda version specifier in setup-miniconda

* Add docs extras to CI pip install

* Add missing doc dependencies to CI install

* Add numba to CI environment

* Use SPHINXOPTS to fail on CI if sphinx has warnings

* Fix docstring issues causing warnings in sphinx documentation generation

* Add _static directory to doc

* Fix type annotation in document

* Fix type annotation throughout SIFT

* Add pytest runs to github action

Move travis config so it no longer runs

* Fix default shell usage in github action

* Use newer...