Fix license to BSD-3 and fix dependencies
This pkg is dead upstream, but it may be maintained here for long, so I thought it'd be good to create MR here anyway:
Changed the license to BSD-3 as given in the License page upstream and added a few dependencies as given by namcap on the repo's package:
badvpn E: The SPDX license statement 'GPL' should be formatted as 'GPL-1.0-or-later' instead
badvpn W: Dependency nspr detected and implicitly satisfied (libraries ['usr/lib/libnspr4.so', 'usr/lib/libplds4.so'] needed in files ['usr/bin/badvpn-flooder', 'usr/bin/badvpn-client', 'usr/bin/badvpn-server'])
badvpn W: Dependency glibc detected and implicitly satisfied (libraries ['usr/lib/libc.so.6'] needed in files ['usr/bin/badvpn-udpgw', 'usr/bin/badvpn-ncd-request', 'usr/bin/badvpn-tun2socks', 'usr/bin/badvpn-ncd', 'usr/bin/badvpn-flooder', 'usr/bin/badvpn-client', 'usr/bin/badvpn-tunctl', 'usr/bin/badvpn-server'])
badvpn W: Dependency gcc-libs detected and implicitly satisfied (libraries ['usr/lib/libgcc_s.so.1'] needed in files ['usr/bin/badvpn-ncd'])
badvpn W: Dependency included, but may not be needed ('iproute2')
I'm not sure if iproute2 should also be removed, it isn't listed as a dependency on Fedora.
And I'm not sure what to do about the special license listed for liwp, whether or not it needs mentioning in the PKGBUILD license=()