Fix progress managers episode 2 attack of the clones

[mdr223]

Summary of PR

optimizer-demo.py

• reflect changes to processing strategy names and addition of sentinel execution strategy

dataclasses.py

• improve ExecutionStats by more explicitly declaring sentinel_plan_stats (rather than grouping plan stats and sentinel plan stats together in the same dict)

filters.py

• bugfix

records.py

• add field_to_score_fn to DataRecordSet to make it easier to access for target records in sentinel execution

execution_strategy.py and execution_strategy_type.py

• move ExecutionStrategyType to its own file
• also created SentinelExecutionStrategyType
• created base class for ExecutionStrategy
• pulled shared execution logic (between MAB and Random) into SentinelExecutionStrategy
• modified / simplified some logic within SentinelExecutionStrategy for scoring computed records
  • I will debug this logic as part of my research work, so don't feel required to comb through the logic of e.g. score_quality and compute_quality

mab_execution_strategy.py and random_sampling_execution_strategy.py

• most of the (algo specific) code that was previously in mab_sentinel_processor.py and random_sampling_sentinel_processor.py, but refactored a bit
• also added progress manager logic

parallel_execution_strategy.py and single_threaded_execution_strategy.py

• pushed execution logic into _execute_plan() method so that progress manager could be stopped no matter what if there was an exception thrown during execution

cost_model.py

• simplified SampleBasedCostModel to process a SentinelPlanStats object (rather than some bespoke dictionary)

optimizer.py

• update name to enable constructor to work with **config.to_dict() in query processor factory

optimizer_strategy.py and optimizer_strategy_type.py

• put types in their own file and simplified

tasks.py

• make use of new enum methods on OptimizerStrategyType

config.py

• modify names and types of *_type variables
• remove dead config params which are no longer used

mab_sentinel_processor.py and random_sampling_sentinel_processor.py

• 💀

nosentinel_processor.py

• remove double inheritance classes now that QueryProcessor takes an execution_strategy

query_processor.py

• pass in kwargs directly (instead of passing in config object)
• add execution_strategy and sentinel_execution_strategy

query_processor_factory.py

• made config normalization logic a bit more robust
• removed lookup mapping for processors
• instead, we construct the optimizer, execution_strategy, and sentinel_execution_strategy and feed them into the processor constructor

sentinel_processor.py

• pulled up shared logic from (formerly) MABSentinelProcessor and RandomSamplingSentinelProcessor

progress.py

• support live display for sentinel plan progress monitoring