* pyi_generator: always ignore files starting with `tests`
* Move CodeBlock out of chakra namespace
* Expose additional names in the top-level namespace
* code pyi fixup
* expose input and quote at the top-level
* add text_field to top-level namespace (maybe)
* fixup chakra code.pyi
* Remove `text_field` from top level namespace
* Remove top-level big C Cond
* fixup top level pyi
* bugfix/723: pc.data_table not working well with pandas as computed vars
Turns out this isnt really a bug. You need to specify an annotation for the computed var to work. This Pr adds a check for annotations on computed vars for data tables
* added more validation for column field
