1. Make all firebird mutexes recursive.
2. Enable exceptions to be thrown by mutexes and process them in code where needed.
3. Catch and ignore exceptions in various MutexGuard dtors.
and CORE-1079: Every attach of fbclient/fbembed library leaks 64KB of memory
To do it:
- created new template GlobalPtr, controlling access to destructors of global objects.
- applied it to global objects.
Also some related cleanup.
2) Fix tracking of OWN_hung in Win32 CS lock manager (lock-up debugging aid)
3) Fix possible unsynchronized access to memory manager in Win32 CS builds
and client library. Have shown itself as a very rare crash of Win32 CS manager
process during its startup.
4) Reduce warnings a little
Points 2 and 3 need to be backported to B1_5_Release
