Add support for winget and chocolatey package counts on Windows

[Gobidev]

closes #181

Chocolatey package count is very straight forward, as it just counts the directories under C:\ProgramData\chocolatey\lib, which is consistent with chocolatey list.

For winget, I made use of an sqlite3 database under C:\Users\Username\AppData\Local\Packages\Microsoft.DesktopAppInstaller_8wekyb3d8bbwe\LocalState\Microsoft.Winget.Source_8wekyb3d8bbwe\installed.db, that contains a table ids with entries for each package that is explicitly installed with winget.

winget list lists a bunch more packages as installed by winget, e.g. Microsoft OneDrive and Cortana, but since those were not installed by the user using winget and those packages that were, are included, I think this is good as is.
Nevertheless, feedback by @Un1q32 or @Kodehawa from Gobidev/pfetch-rs#69 for this is welcome.