* add kvtool as a subrepo
* use kvtool instead of hardcoded configurations
* encapsulate chain port numbers
* refactor query clients
* include ibc in test suite
* track & create accounts per chain
* setup test suite env & toggle for IBC tests
* support different denoms on different chains
* add E2E_SKIP_SHUTDOWN flag
* test ibc transfer of funds!
* include submodules in necessary github checkout action
* update readme w/ details about e2e git submodules
