Choose better function and argument names

[matt-dray]

Need to be more descriptive and helpful to the user. These will be breaking. Suggest changing them for v0.1.0.

Functions

• [ ] new_a11ytable() to create_a11ytable() (verb)
• [ ] create_a11y_wb() to convert_to_wb() (the real purpose is to convert from a11ytable-class to Workbook-class), or simply create_workbook() to mirror create_a11ytable()
• [ ] Greater consistency in the .insert_*() functions: .insert_notes_statement and .insert_blanks_message() should have consistent suffix (this could have a knock-on effect for other functions that handle the message for blank cells, like .has_blanks_message() and .get_start_row_blanks_message())?

Arguments

• [x] Change content to a11ytable in create_a11y_wb() (you're passing an a11ytable so call it that, also 'content' is too close to 'contents' as in the sheet type)
• [ ] Change x in S3 functions (I think I used x by convention, but not helpful for user)?

[matt-dray]

create_a11ytable() and generate_workbook() are probably the right choices. Start with verbs. 'Create' implies building from scratch. 'Generate' implies the workbook is being created from some kind of input (i.e. an a11ytable). I like the idea of 'convert' as a verb, but I don't like the three words inconvert_to_workbook(), while convert_workbook() is ambiguous (converting from a workbook or to a workbook?).

[matt-dray]

Provide a deprecation warning to new_a11ytable() and create_a11y_wb()?