gsheets: Update input data format and allow for multiple range updates

[hunterachieng]

Summary

Updated appendValues(), batchUpdateValues(), and getValues() to use positional arguments instead of a single params object.

Callback parameter has been removed from appendValues(), batchUpdateValues(), and getValues() in favor of a promise-based API.

Supporting array of data in appendValues(id, data = [{}], options).

Fixes #1476 #1656

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[mtuchi]

I have asked joe, for his opinion on new signature
batchUpdateValues(sheetId, data = [{range, values}], options = {valueInputOption})

If he agrees i think, we should update appendValues as well and remove support for callback in getValues()

[mtuchi]

@hunterachieng i think the changes are looking good, can you tidy up two things

• Create an issue supporting array of data in appendValues(id, data = [{}], options) to match what we have in batchUpdateValues
• Clean up PR description and title to match the changes and don't forget to update the review checklist as well