* Encrypting the password stored in AuthenticationDTO for every db.
* Adding comment to the properties file to denote that adding encryption salt and password are mandatory to the server coming up.
* Added the encryption salt and password to server.yml to allow the github actions to succeed.
* Adding database migration to encrypt the existing passwords for authentication object (used for storing db connection username/password)
Changes to the installation script install.sh:
1. Instead of overwriting the existing encryption password or salt, giving the user an option to conserve the previous encryption credentials to ensure that the developer users do not lose access to their database configurations (passwords).
2. Added another file for writing encryption credentials (encryption.env) to ensure that we dont delete the encryption password and salt by mistake.
TODO: Need to add checks for MacOS machines as well.
Co-authored-by: Nikhil Nandagopal <nikhil@appsmith.com>
Co-authored-by: Shrikant Sharat Kandula <shrikant@appsmith.com>
