[Firebird-net-provider] Abbility to use "no garbage collect" connection parameter

[Lukáš V. <l.v...@gm...>]

Hi

i d'like to add support for option NoGarbageCollect to connection 
parameters.

I purpouse this implementation:
     - Connection String will be extended with parameter "no garbage 
collect" (synonym: "nogarbagecollect")
     - Connection String Builder will be extended eigher (.NET property 
- bool name NoGarbageCollect)
     - FbConnectionInternal will add isc_dpb_no_garbace_collect into 
Database Parameter Buffer during BuildDpb method

We use Firebird database for web application, and we run backups every 
night. So we d'like to keep garbage collect for backup and speed-up 
normal operation of web.

Please let me know what you think about it.

Lukáš Vykydal