feat: integrate cometmock (#989)

* Add gorelayer and CometMock to Dockerfile

* Add option to start with cometmock in start-chain script

* Start adding support for rly

* Adjust relayer start action

* Add entrypoint for short happy path steps

* Add . nosec G204 and waiting for blocks

* Adjust rly config: Gas is free

* Remove optout steps from short happy path

* Use separate redelegate step for short happy path

* Wait for blocks after unbonding

* Make naming more descriptive and add comments

* Add comment to chain name sorting and improve comments

* Update start-chain.sh

Address comments form joint review session with @MSalopek

* Fix typo

Dockerfile

@@ -30,12 +30,20 @@ RUN make install
 # Get Hermes build
 FROM ghcr.io/informalsystems/hermes:1.4.1 AS hermes-builder
 
+# Get CometMock
+FROM informalofftermatt/cometmock:latest as cometmock-builder
+
+# Get GoRelayer
+FROM informalofftermatt/gorelayer:nogas AS gorelayer-builder
+
 FROM --platform=linux/amd64 fedora:36
 RUN dnf update -y
 RUN dnf install -y which iproute iputils procps-ng vim-minimal tmux net-tools htop jq
 USER root
 
 COPY --from=hermes-builder /usr/bin/hermes /usr/local/bin/
+COPY --from=cometmock-builder /usr/local/bin/cometmock /usr/local/bin/cometmock
+COPY --from=gorelayer-builder /bin/rly /usr/local/bin/
 
 COPY --from=is-builder /go/bin/interchain-security-pd /usr/local/bin/interchain-security-pd
 COPY --from=is-builder /go/bin/interchain-security-cd /usr/local/bin/interchain-security-cd