v0.3.0: migration to pure terraform, support for minimal verbosity and disable ops agent installation

What's Changed

• Merging main with develop by @soumyapani in #63
• Creating full terraform module for aiinfra-cluster by @soumyapani in #65
• Temporarily disabling OPS agent installation. by @soumyapani in #68
• Release v0.3.0 by @soumyapani in #71

Full Changelog: v0.2.0...v0.3.0