Planet

- added new asset type

- fix quick search regression: allow multiple item types as options in quick search again

- Add CLI support for Planet Orders API

- add new skysat asset types

-------------------------------------
- report the default value for item limit
- replace hardcoded values with global variables
- add header for data examples in Examples page
- adding before, after options, separating `features list` from `features
- Added default limit of 100 to `analytics collections features list`
- Added separate `analytics collections features list-all` that will keep retrieving results with no limit
- Added before, after options to both `analytics collections features list` and `analytics collections features list-all`

-------------------------------------
- Added support for Analytic Feeds
- Fixing incorrect shorthand CLI arg
- Add comment to explain why the get resource entrypoint won't work in AF next.
- unit tests for analytics commands
- Adding auto-pagination for analytics commands
- Add additional mosaics entrypoints to list mosaics for a series, as well mosaics for AF resources
- Separate out analytics configuration to allow for using analytics alongside mosaics, even in AF next