update forecast_test with new output
add daily forcast printing
add man page to gitignore
update metservice library

This fixes a bug where ClothingLayers was stored as an int instead of a
string and caused a crash when the API returned "3 to 4" ClothingLayers.
add installation instructions to readme
create makefile and man page
reference metservice-go on readme
improve usage section on readme
fix location help message
change config path to XDG_CONFIG
test cmd submodule in build manifest
create build manifest
fix forecast command help message
implement observation command
use proper temperature symbol for forecast

I updated the forecast function to use the proper Celsius symbol and
fixed the tests
update test with location