Fixes#4110.
CEF will create a debug.log file in the current folder if it encounters
an error. Instead, it should be written to Keyman's diag folder. This
fix is for both Keyman Developer and Keyman for Windows.
When Sentry is trying to shutdown an app which has CEF windows active,
the main process can hang waiting for the CEF renderer etc processes to
shutdown. Instead, we now rely on the child (CEF renderer etc) processes
to shutdown when their parent process aborts, with a watchdog thread, and
then abandon everything in the parent process with ExitProcess. This is
more reliable, especially with nastier crashes like memory corruption or
stack corruption.
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.
