Adds an updateChannelPolicy command to the LND Developer Tools,
mirroring lncli updatechanpolicy: base_fee_msat, fee_rate_ppm,
time_lock_delta, and min/max_htlc_msat inputs, a create_missing_edge
toggle, and a global or per-channel target picker.
Backed by a raw PolicyUpdateRequest passthrough on lnd (REST),
embedded-lnd (new lndmobile binding + iOS dispatch table entry), and
lightning-node-connect, kept separate from the production setFees
flow so units and inbound-fee handling there are untouched.
Evan Kaloudis
89447a25c2