feat: Streaming Optimizer (#41)

After many rewrites + discussions + considerations.

Notes: 
- The engine needs a rewrite to be able to support CPS and execution
forks.
- Storage should have versioning to allow for persistence and resource
management.

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Signed-off-by: Yuchen Liang <yuchenl3@andrew.cmu.edu>
Co-authored-by: Yuchen Liang <yuchenl3@andrew.cmu.edu>
Co-authored-by: AlSchlo <AlSchlo@users.noreply.github.com>
Co-authored-by: Alexis Schlomer <aschlome@andrew.cmu.edu>

Author: 3 people