Back in the good old days wvdial was used to easily connect
a modem to the internet without having to write chat scripts
manually. Some people still use modems, so add support for
wvdial to ptxdist.
The original wvdial uses a homebrew build system not suitable
for cross compilation, so we replace
wvstreams is a C++ networking library which is added here because
it's used by wvdial. Upstream for this library is dead, so we
download the package from storage.googleapis.com.
To make it compile the debian patches are added.
WvStreams uses autoconf, but not automake which for us means
that
