Fixes#3831.
This fixes both issues reported in the bug (dproj changes ensure
separate .tds, and Makefile changes fix order of execution so that
dbg is generated after sentryprep's cleanup).
Updates Delphi projects to use Sentry API instead of legacy
reporting mechanisms, and strips out existing text-based
reports. Not yet complete: reporting from kmcomapi and
hosted web controls, release number. These are flagged
as build hints.
First stage of Sentry integration. Adds a basic library
for handling errors through Sentry. Does not include
integration into external handler or Keyman apps as yet.
