f3: lotus f3 powertable commands depend on chain state

[Kubuxu]

Without a full chain state, the lotus f3 powertable commands will stop working.
There is also no way to fetch the values of the initial power table without the chain state.

[BigLep]

@Kubuxu : how much should we worry about this case of not being able to get the initial power table if we don't have the chain state? I'm trying to gauge the priority of this.

[Kubuxu]

The info is there (in go-f3 module), but it is not exposed.

[rvagg]

I had a quick look at this and I think this issue needs more information about what the actual ask is here. As far as I can tell, the --ec flag makes it look up the power table from state (F3GetECPowerTable -> GetPowerTable -> getPowerTableLotusTSK (which is dependent on chain state). But without the --ec flag it calls into go-f3 itself, F3GetF3PowerTable -> GetF3PowerTable -> go-f3 GetPowerTable. So it's already fetching the power table from go-f3 itself.

There may be a chain state dependency that I'm missing, but that's the bit that needs more clarity for this issue to be closed by someone else I think.