* buildlink bin/libnet{10,11}-config to bin/libnet-config for comvenience
(they ware renamed in pkgsrc to avoid conflict)
* remove -lnet from BUILDLINK_CPPFLAGS.libnet11.
linker flags should not be in CPPFLAGS, and it berak likage with libtool
as reported in PR 37300.
* libnet11 install just a static library, so set defaut DEPMETHOD = build
Bump PKGREVISION for libnet11 related packages (net/isic will be updated later).