FEATURES
1. Added support for ``|`` piping commands output via models
2. Added PipeFunctionsModel build in class with this functions to process results:
- include - Returns only lines that contains requested ``include`` pattern
- exclude - Returns only lines that does not contains requested ``exclude`` pattern
- json - convert results to json string and pretty print it
- pprint - pretty print results using Python build-in ``pprint`` module
- yaml - convert results to yaml string and pretty print it
3. Added tests for PICLE using stdin/stdout App class attributes
4. Added support for model field ``function`` attribute to reference callable function to execute using collected results
5. Added support for ``processors`` argument to pass results through a list of arbitrary functions
6. Added support to use Field ``alias`` attribute as a field name to mask pydantic methods and reference the command