This code will obey the consensus parameter "sendme_emit_min_version" to know
which SENDME version it should send. For now, the default is 0 and the
parameter is not yet used in the consensus.

This commit adds the support to send version 1 SENDMEs but aren't sent on the
wire at this commit.

Closes #26840



Signed-off-by: David Goulet <dgoulet@torproject.org>