test(a3p): add genesis fork acceptance test

a3p-integration/proposals/z:acceptance/genesis-test.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+source /usr/src/upgrade-test-scripts/env_setup.sh
+
+export_genesis() {
+  GENESIS_EXPORT_DIR="$1"
+  shift
+  GENESIS_HEIGHT_ARG=
+
+  if [ -n "$1" ]; then
+    GENESIS_HEIGHT_ARG="--height $1"
+    shift
+  fi
+
+  agd export --export-dir "$GENESIS_EXPORT_DIR" $GENESIS_HEIGHT_ARG "$@"
+}
+
+killAgd
+FORK_TEST_DIR=$(mktemp -t -d fork-test-XXX)
+mkdir -p $FORK_TEST_DIR/config
+cp /root/.agoric/config/priv_validator_key.json $FORK_TEST_DIR/config
+agd --home $FORK_TEST_DIR tendermint unsafe-reset-all
+
+export_genesis $FORK_TEST_DIR/config
+startAgd --home $FORK_TEST_DIR