Simplify name generation according to slack discussion, also helps bugsplat with matching files

Effective rename of DRTVWR-506-simple since there is no way to rename a branch. Cloned canonical viewer into DRTVWR-519, copied over the files that changed from DRTVWR-506-simple and pushed back.  Once I am satisfied everything is correct, DRTVWR-506-simple will be removed

Due to some known crashes inside bugsplat and deprecated mac support

Updated nghttp2 to codeticket version 545354
Updated boost to codeticket version 545361
Updated colladadom to codeticket version 545362
Updated googlemock to codeticket version 545363
Updated curl to codeticket version 545369

Pull in new version of Dullahan that has a (trivial) fix for SL-13139 chat field on Youtube live is empty.

Pull in a new version of Dullahan that was built using the first version of CEF built entirely in TeamCity on all platform

Pull in the newest Dullahan built against the latest CEF. The CEF/Dullahan Windows builds are both functionally identical to the last one but the macOS CEF (and hence Dullahan) one is the first to be build entirely from source in TeamCity

This packages were needed for icons, but since icons are no longer needed, neither should packages change.

Pick up first version of new Dullahan build autobuild scripts that builds CEF wrapper first before building Dullahan. Change to version headers meant a change to appviewer.cpp too.

Pull in this viewers version of Dullanan (and CEF) - identical to DRTVWR-509 (aduly swim) for now but will evolve