"unlocked_scaled_factor" was a confusing name because the value is
also used when computing vote weight for locked deposits. Rename to
"baseline_vote_weight_scaled_factor" and generally change "unlocked"
to "baseline" in several places.
Also rename "lockup_scaled_factor" to
"max_extra_lockup_vote_weight_scaled_factor" to highlight that it's just
the maximum contribution and that it's "extra" - on top of baseline.
- withdrawable -> unlocked
"withdrawable" was a bad name, since these funds - while unlocked -
are not necessarily withdrawable if the voter is currently engaged in
a vote.
- only_deposit -> only_unlocked
Locked funds are technically also deposited. Make it clearer that this
is talking about the unlocked parts of the funds on the account.