EXP-1460 : Make the caret in favorites toolbar display more consistently and with less finicky hit testing

EXP-1462 FIX -- Moving speak button or voice settings button between toolbars can cause viewer to crash on Mac

* Updated iterator code to not erase stuff while we're iterating through it!

Reviewed by Richard.

  "DisplayDestinationsOnInitialRun" setting or initial agent SL login.
* Added toolbar enumeration for toolbar view so queries for commands can now
  indicate where the command currently is on the left, right or bottom toolbars.
* Updated toybox toolbar button tooltips to indicate where the command currently
  resides in the view.
* Added unused function to allow toolbar buttons to be changed to flash
  indefinitely.

Reviewed by Richard.

* All text updated to read "Toolbar buttons" in the appropriate ways.

* L$ background color now matches the menu bar.  The tooltip and click behavior
  have been left untouched, per design.

EXP-1354 : Fixed. Toolbars now saved whenever changing their config and only if initialized correctly.

EXP-1458 FIX Chat text entry bar does not have focus when chat floater is opened while chat history is toggled open
made expando-button chrome, so it doesn't steal focus

EXP-1400 FIXED (Call request docking icon overlays other toolbar buttons when speak button in side toolbar)

- LLDockableFloater::getDockTongue to init dock tongue with proper image depending on floater dock side, also added images for left and right tongues.

- Added proper call floater positioning relatively to the speak button

EXP-1439 : Modify DaD on the Favorite toolbar so that reordering visible landmarks don't send any back to the end of the list

* The topinfo bar no longer follows the right edge of the window so it doesn't
  scale down and disappear.

Automated merge with bundle:c:\users\richard\appdata\local\temp\thg.qp3yns\ssh__richard@hg.lindenlab.com_sergeylproductengine_exp-1416__5pjppa.hg

* Added minimum size for layout panel that holds voice morphing and removed
  user resizability.

Reviewed by Richard.

Reviewed by Richard.

EXP-1404 FIXED (Dock icon shown in lower left corner of call dialog when user has speak icon hidden)

- Don't draw tongue of dockable call dialog floater in case speak button is not present in any tool bar.

EXP-1416 FIXED "Speak" and "Voice controls" buttons added as control views in LLTransientFloaterMgr to prevent hiding the transient IM floater.