Add initial terraform scripts for automating infra. for Informatica Secure Agent

Add initial terraform scripts for automating infra. for Informatica Secure Agent

Since our licensing restrict us from more than 1 instance of Secure Agent, before deploying a new instance existing instance need to be shutdown (after adjusting any resources that depends on that instance). Due to this reason terraform is not part of CI/CD.

Depending on how Informatica going to persist any configuration(configs and log files) for next restart, need to work on resources for EFS, this is pending.

@JARED.KOSANOVIC @ERIC.SCHOVILLE