Add suport for `DataFrame.checkpoint()`

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
Add support for checkpointing the DataFrame - so essentially writing the intermediate representation of a plan to disk and breaking lineage.

**Describe the solution you'd like**
Introducing a `DataFrame.checkpoint()` method

**Describe alternatives you've considered**

**Additional context**
Related to #1829, but split into two parts.