gh:284 - resolving various axis types

[ramvikrams]

• Closes CLEAN: Resolve Axis and AxisType #284
• Tests added: Please use assert_type() to assert the type of any return value

Sir you can check and if any changes are required i'll do it

[Dr-Irv]

Can you fix in core/generic.pyi sort_index() to use Axis for the axis argument?

Can you fix in core/series.pyi 'compare()to use the appropriate type foralign_axis` argument?

Otherwise, this looks good beyond the other comments I made.

[Dr-Irv]

thanks @ramvikrams

[ramvikrams]

thanks @ramvikrams

thanks a lot sir