new function to convert stories to yaml file

[barrettk]

closes #30

[barrettk]

FYI this is WIP but almost done - running some cmd checks at the moment to fix a couple things

[seth127]

• [x] Get rid of column names args. User will have to have the right column names
• [x] Put in docs that the column names must match what is specified in the docs for [read_spec_gsheets()] under "Option 2 - Stories linked directly to tests".
  • [x] Note that "Option 1 - Stories and Requirements" is not currently implemented for gsheet_to_yaml().
• [x] Change input args to be read_spec_gsheets(file, ss, sheet = NULL)
  • [x] file should be required
  • [x] column names args will go away, as described above
• [x] Use read_spec_gsheets(ss_stories = ss, sheet_stories = sheet) instead of custom logic to get dd
  • [x] You will probably have to modify the downstream logic a bit. For example, splitting test ID's is already done for you here
• [x] Let's not do the file.edit() thing at the end. I think most users will probably not want that. Instead, let's invisibly return the file path it wrote to. Then users can pipe that to file.edit() if that's what they want to do.
• [x] Write at least one test for this. You can use this test sheet: 1LpSX5Rb1XM5-xmQ8Wl2gQjMT5-3FIkuCM7oZhSgvWeI
  • [x] Make sure to include these two lines at the top of the test.
• [x] Only semi-related, if we're going to move yaml to Imports instead of Suggests (which I think is fine, because the YAML-based stuff is going to be our primary focus in here going forward) let's remove any spots like this that check for it.