added `txDiffs` function

update default nodes and timeouts

switched to waves/protobuf package for protobufs

cleanup dependencies

added `txEvaluate()`

ensure() default tick delay lowered from 1 to 0.5 seconds

added matcher `verified` tokens support

its better to start using stdlib 6 in tests

added asymmetric fee support

upgrade internal cloak/uncloak -> deemru/cloaked