Py-ballisticcalc

What's Changed
* Sight features and profile configs by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/67
* added new method to define units through the alias declaration (kinda: Unit.parse_unit('10m'))
* added Sight class for future adjustment calculations relative to provided sight technical parameters (Not yet fully implemented)
* added pybc - cli tool for loading a properties from toml files to calculator interface (Not yet fully implemented)
* added exception classes for units

**Full Changelog**: https://github.com/o-murphy/py-ballisticcalc/compare/v2.0.1...v2.1.0b0

What's Changed
* file not found error fix if pybc.toml not exists by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/65


**Full Changelog**: https://github.com/o-murphy/py-ballisticcalc/compare/v2.0.0...v2.0.1

What's Changed
* V2.0.0b0 by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/52
* 2.0.0b1 by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/55
* Remove redundand lambdas by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/59
* 2.0.0b3 by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/60
* Refactored settings by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/61
* * fix config autoload by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/62
* * updated Example.ipynb, disabled config loader debug message by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/63


**Full Changelog**: https://github.com/o-murphy/py-ballisticcalc/compare/v1.1.4...v2.0.0

What's Changed
* fix config autoload by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/62


**Full Changelog**: https://github.com/o-murphy/py-ballisticcalc/compare/v2.0.0b4...v2.0.0b5

What's Changed
* Refactored settings by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/61
* removed settings.py
* calculator specific global constants moved to trajectory_calc.py/.pyx
* config loader moved to __init__.py
* added pybc.calculator section to config loader
* added functions to reset defaults
* py_ballisticcalc_exts/setup.py fix

**Full Changelog**: https://github.com/o-murphy/py-ballisticcalc/compare/v2.0.0b3...v2.0.0b4

What's Changed
* New Multi-BC functionality + miscellaneous fixes and refactoring by dbookstaber https://github.com/o-murphy/py-ballisticcalc/pull/58
* Remove redundand lambdas by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/59
* 2.0.0b3 by o-murphy in https://github.com/o-murphy/py-ballisticcalc/pull/60
* small fix to actions


**Full Changelog**: https://github.com/o-murphy/py-ballisticcalc/compare/v2.0.0b1...v2.0.0b3