Add a new `exclude_exhausted_sessions` field to the relevant
wtclient.proto requests. This was chosen instead of "include_exhausted"
so as to not break the API.
Prior to this commit, the wtclient would request tower info from both
the legacy client and the anchors client and would then merge the
results returned. This is incorrect since the two clients will have
different session info and different "active" statuses for the same
tower. This commit thus ensures that we dont lose this info.
This commit deprecates/replaces the old field `sat_per_byte` with
`sat_per_vbyte`. While the old field suggests sat per byte, it’s
actually using sat per virtual byte. We use the Hidden param to hide all
the deprecated flags. These flags won't show up in help menu onwards,
while stay valid that can be passed from cli. Thus bash scripts
referencing these fields won't be broken.
