* update kvtool
* add env vars for e2e automated upgrades
* run kvtool with upgrade flags when enabled
* add e2e test placeholder for upgrade handler tests
* allow override of kvtool's kava.configTemplate
* use the correct image tag when running e2e tests
* update kvtool
* always docker-build when running make test-e2e
* refactor skip shutdown to always skip shutdown
* add CtxAtHeight grpc helper
* add Community & Earn queriers
* expose UpgradeHeight in suite
* document e2e chain upgrades
* add reference to example branch
* 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