Add info logs to SCM_Command so the log makes sense

[nickbreen]

E.g. this is not as helpful as one might expect.

Found release: https://api.github.com/repos/CherryFramework/CherryFramework/tarball/v3.1.5
Unpacking the package...
Installing the theme...
Removing the old version of the theme...
Theme updated successfully.
Success: Translations updates are not needed for the 'English (US)' locale.

[nickbreen]

The normal install from ZIP which is used under-the-hood doesn't display the plugin/theme name or version... log those explicitly.