To add new airdrop data

• Add the csv/json data in csv-data folder (create folder if missing)
• add new entry in airdrop-config.json file
• add new entry in addCsv.js file (this links the file and entry in airdrop-config.json file based on key)
• if it is json/custom code is needed, add it in readCSV function
• set redis config in your env REDIS_HOST, REDIS_PORT, REDIS_PORT
• run node addCsv.js to update te database
• (not sure if needed) restart airdrop checker service
• commit changes.