Add position prompt

[drtaru]

Add a prompt to the welcomeDialog to prompt the user for a position and then report that to Jamf Pro using the built in -position recon flag along with all the other user input options.

The position prompt is dynamic.

• With promptForPosition set to true
  • If the admin prefills positionListRaw="" with a comma separated list the user will be prompted to select a position from a dropdown list.
  • If the admin sets positionListRaw="" the user will be prompted to manually enter a position in the text-entry portion of the welcomeDialog

• With promptForPosition set to false

  • The user is not prompted to provide a position

  For all scenarios the infobox is updated with the relevant information as well.

[dan-snelson]

Two words, @drtaru: Turbo Cool!