Add PKG_LICENSE variable to the most of the packages.

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
Add PKG_LICENSE to the rest of the packages

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
smap: move abandoned smap package to packages-abandoned repository

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
Update a few of the PKG_LICENSE tags to be more accurate

Signed-off-by: Eric Schultz <eschultz@prplfoundation.org>
Signed-off-by: Jiri Slachta <slachta@cesnet.cz>