New Config Object for compactConfig

[jihoonson]

CoordinatorDynamicConfig is designed to accept simple configuration values rather than complicated JSON objects. #5102 introduces a new configuration, compactConfig, which is implemented as a part of CoordinatorDynamicConfig in that PR. Since compactConfig is a complicated JSON object, we need another new config object for it rather than using CoordinatorDynamicConfig.

Also, CoordinatorDynamicConfig should be documented as it is designed to accept simple values.