Add maximum depth option to all function to limit how deep to apply formatting

**Is your feature request related to a problem? Please describe.**
I want to only affect the top level keys, any keys at a depth greater than one carry meaning and I don't want to modify them

**Describe the solution you'd like**
Ability to specify the `max_depth` of the recursion?

**Describe alternatives you've considered**
None

**Additional context**
None
