feat(Archicad): Archicad Connector UI finalization

[jozseflkiss]

Description & motivation

Fix of https://spockle.atlassian.net/browse/CNX-8589.

Changes:

Moving from beta to production some UI glitches should be fixed:

• Flashing API Calls window on Archicad side when sending data
  • subelement export logic has been changed: earlier subelements (door, window and skylight) were exported during the export of the parent and extra calls were initiated to Archicad to get subelement information. Now fenestration elements (door, window and skylight) are exported separately, and connected under the "elements" property of the parent element after.
  • as a result of this, export speed has been improved a lot (Archicad sample building export time 2-3x faster than before)
• Remove command line window on Windows
  • VS project changed from Exe to WinExe
  • DUI2 close event is not canceled when pressing close button of the UI
  • Application icon added
• Use ApplicationObject and correct reporting during send
  • ApplicationObjects used during send operation as well
• Reliable progress meter update during send and receive
  • A good-enough implementation of progress bar is introduced

Checklist:

• My pull request follows the guidelines in the Contributing guide?
• My pull request does not duplicate any other open Pull Requests for the same update/change?
• My commits are related to the pull request and do not amend unrelated code or documentation.
• My code follows a similar style to existing code.
• I have added appropriate tests.
• I have updated or added relevant documentation.

[AlanRynne]

I see no deal-breakers here. Should be tested once WIP is out.