[V109 specific] GetFee's GetChain from msg.TargetAsset, not msg.Destination + [refactor] synth cap based on pool depth rather than asset depth
Implements thorchain/thornode!2604 (merged) and thorchain/thornode!2605 (merged)
Edited by GiMa-Maya
Implements thorchain/thornode!2604 (merged) and thorchain/thornode!2605 (merged)