* 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
* setup e2e test that starts kava chain
* refactor into a testify suite
* setup ethClient
* add example test checking chain id
* cleanup
* refactor & support funded accounts with txs
* ignore e2e tests in CI & consolidate makefiles
* remove circular go.mod dependency
vendors `signing` and `grpc` packages from `kava-labs/go-tools` to
refrain from a circular dep and fix pulled in dep versions
* add min fee for evm side
* prune nothing in e2e node
