* refactor(profiler): integrated getter func.
Removed metric getter function from their own file.
Added metric getter to their own interface classs.
created dispatch by value methdo to dispatch metric getter func.
* feature(profiler): added systemProfiler schema
* feat(profiler): workflow fresh. & snflk impl.
* feat(profiler): freshness endpoint for put and get
* feat(profiler): added system met. for redshift
* feat(profiler): freshness met. for bigquery
* fix(profiler): keyword not found in func
* feat(profiler): Added sample data for freshness
* fix(profiler): fetch previous day for BQ
* fix(profiler): sonar + data fetching logic
* fix: typo in SystemMetric Class
* fix: linting
* fix: extracted out EntityList class into models.py