Add playbook to send create-validator tx for subsequent nodes (#3)

Part of https://www.notion.so/Create-stacks-for-mainnet-1f2a6b22d4728034be4be2c51decf94e of cerc-io/laconicd#66
- Use calculated staking amount for running validator nodes

Co-authored-by: Shreerang Kale <shreerangkale@gmail.com>
Co-authored-by: Nabarun <nabarun@deepstacksoft.com>
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Reviewed-on: #3
Co-authored-by: shreerang <shreerang@noreply.git.vdb.to>
Co-committed-by: shreerang <shreerang@noreply.git.vdb.to>

stack-orchestrator/compose/docker-compose-mainnet-laconicd.yml

@@ -12,6 +12,7 @@ services:
     volumes:
       - laconicd-data:/root/.laconicd
       - ../config/mainnet-laconicd/run-laconicd.sh:/opt/run-laconicd.sh
+      - ../config/mainnet-laconicd/create-validator.sh:/scripts/create-validator.sh
     ports:
       - "6060"
       - "26657"