Strato-query

Fixes
- Bug fixes in `pretty_print_r` and `pretty_print_vba` for `query_type`

Fixes
- Fixes argument name in `pretty_print` method

Adds
- Adds a pretty print method that can be called on the `APIQueryParams` class, and any class inheriting from the same.
It will return a string that mirrors R code, and can be copied and pasted directly into an R script.

Adds
- Adds a pretty print method that can be called on the `APIQueryParams` class, and any class inheriting from the same.
It will return a string that mirrors Excel VBA code, and can be copied and pasted directly into a VBA script.

Adds
- Adds a pretty print method that can be called on the `APIQueryParams` class, and any class inheriting from the same.
It will return a string that mirrors the Python code, and can be copied and pasted directly into a Python script.
- Adds default values for the `query_type`, allowing this value to be omitted when creating instances of the `APIQueryParams` classes

Adds
- Adds example queries to demonstrate different ways of using `strato-query`