Add ability to decouple configs for scheduling inline and running async

Currently, there are 2 ways to enable compaction:

1. Inline - This will schedule compaction inline and execute inline
2. Async - This option is only available for HoodieDeltaStreamer based jobs. This turns on scheduling inline and running async as part of the same spark job.

Users need a config to be able to schedule only inline while having an ability to execute in their own spark job