Fyne command update & uninstall

[stuartmscott]

Is your feature request related to a problem? Please describe:

The fyne command makes it easy to install new apps, however it is missing the functionality to update the app to the latest version, or uninstall it from the system.

Is it possible to construct a solution with the existing API?

No?

Describe the solution you'd like to see:

The addition of fyne update or fyne get -u to update and fyne remove to uninstall a previously installed app.

[stuartmscott]

Confirmed with @andydotxyz that fyne get runs go get -u so it gets the latest code, however there is an optimization which prevents the binary from being rebuilt if it already exists so the installed application is not getting updated to the latest code, there are two possible approaches we could take to fix this;

1. fyne could check if the modification time of the binary is older than the date of the latest commit
2. fyne could symlink the binary to a file with a name containing the hash of the commit that was compiled, this commit hash could be compared with the repositories current HEAD