Added set_records and set_record to update sheet via records.[Issue #677]

[muddi900]

Fixes #677

[alifeee]

thanks for the implementation!

I find the test hard to parse, would it be possible to write it with very explicit objects? e.g.,

table_before = [
  ["header 1", "header 2"]
  ["value 1",  "value 2"]
]
table_after = [
  ["header 1",    "header 2"]
  ["value 1",     "value 2"]
  ["new value 1", "new value 2"]
]