Rename drone to faucet (#7508)

multinode-demo/faucet.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+#
+# Starts an instance of solana-faucet
+#
+here=$(dirname "$0")
+
+# shellcheck source=multinode-demo/common.sh
+source "$here"/common.sh
+
+[[ -f "$SOLANA_CONFIG_DIR"/faucet-keypair.json ]] || {
+  echo "$SOLANA_CONFIG_DIR/faucet-keypair.json not found, create it by running:"
+  echo
+  echo "  ${here}/setup.sh"
+  exit 1
+}
+
+set -x
+# shellcheck disable=SC2086 # Don't want to double quote $solana_faucet
+exec $solana_faucet --keypair "$SOLANA_CONFIG_DIR"/faucet-keypair.json "$@"