Cli-weather

This release fixes:
- Bug related to Imperial units
- Update doc of removal of airquality data from version v1.0.0

*4 - Beta Limited Use Release*

- Introduced new feature to support airquality forecast for next 3 days with 12 hours intervals when used in conjunction with -a and -f which stands for --airquality and --forecast respectively.
- Able to provide key data like aqi and its associated category,concentration of surface no2,so2,co and concentration of particulate matters.
- Introduced --version and --about to provide the version of PyPI package and description of the project.
- Almost production ready, if General API is upgraded since it does not server more than 1 simultaneous HTTPS response.

*3 - Alpha Test Release*

- Introduced new optional argument -f, --forecast which gives 7 day weather forecast [for now will extend to airquality forecast by next release] with daily intervals from any point on the planet. The result can be fetched by either the city name or postalcode.
- Forecast data from the world's most accurate weather models including the GFS 13km, ECMWF, DWD 6.5km ICON-Europe, and NOAA 3km HRRR.
- Code reuse made for both city and postalcode by dividing functions in each class to new modules altogether.

*3 - Alpha Test Release*

- Python2 and Python3 compatible: _Finally running in both py2 and py3, previously had issues with module imports. Tested with Ubuntu container running in interactive+detached mode._
- Introduction of wheel distribution in binary: _Wheel distribution with --universal tag signifying above feature. Wheel enhances installation since the source is in binar._
- Minor bug fixes in setup.py

3 - Alpha Test Release
- Minor bug fixes in setup.py
- Doc update in PyPIDocumentation.md