Episimmer

Added Contact tracing by anuritabose and tusharshetty61
Add docstring and type hints for vaccination policy by ItIsUday
Symptomatic testing by suryadheeshjith
Vulnerability Detection refactor by suryadheeshjith
Event Lockdown policy feature by suryadheeshjith
Model.py tests and enhanced documentation by suryadheeshjith
Contact Tracing 2 by anuritabose and tusharshetty61
Event vulnerability by ItIsUday
Documentation complete by suryadheeshjith
Tutorials complete by suryadheeshjith

What's Changed
* Episimmer made packageable by suryadheeshjith in https://github.com/healthbadge/episimmer/pull/91


**Full Changelog**: https://github.com/healthbadge/episimmer/compare/v2.0.0...v2.1.1

What's Changed
* Added Visualization for the scheduled model by anuritabose in https://github.com/healthbadge/episimmer/pull/72
* Added support for Multi-dose Vaccination policy by ItIsUday in https://github.com/healthbadge/episimmer/pull/74
* Restructured examples by tusharshetty61 and anuritabose in https://github.com/healthbadge/episimmer/pull/75
* Receive and contribute infection fix by suryadheeshjith in https://github.com/healthbadge/episimmer/pull/79
* Complete restructuring of code and documentation

New Contributors
* anuritabose made their first contribution in https://github.com/healthbadge/episimmer/pull/72
* ItIsUday made their first contribution in https://github.com/healthbadge/episimmer/pull/74
* tusharshetty61 made their first contribution in https://github.com/healthbadge/episimmer/pull/75

**Full Changelog**: https://github.com/healthbadge/episimmer/compare/v1.0.0...v2.0.0

First Release of Episimmer