[EAGLE-635] Refactor policy parser and validator for richer plan details and
better performance
## Changes
* Refactor policy parser and validator for richer plan details and better
performance
* Decouple PolicyExecutionPlan and PolicyValidation
## API
* Parse API
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POST
Repository: incubator-eagle
Updated Branches:
refs/heads/master adc2ba900 -> 6dbdb4f72
[EAGLE-635] Refactor policy parser and validator for richer plan details and
better performance
## Changes
* Refactor policy parser and validator for richer plan details and better
performance
* Decouple