BLD: Prepare for pip release (mie-lab#199)

* BLD: update version number

* DOC: update roadmap

BLD: Update version numbers for release V0.5.3 (mie-lab#173)

* Update __version__.py

* Update conf.py

CLN: Added missing docstring (mie-lab#171)

* DOC: Added docstring and doc for create_activity_flag

* CLN: Minor adjustment of docstring

* DOC: adjust doc structure

Co-authored-by: Ye Hong <[email protected]>

DOC: Update version number for next release

Update __version__.py

update version

Update publish_pypi.yml

testing

update version number for new release (mie-lab#112)

Update __version__.py

Experimental/efficient trip generation (mie-lab#72)

* efficient implementation of trip generation

* add tqdm into dependencies

* efficient implementation of trip_id assignment

* add comments

* allow flexible index names for spts and tpls