SQLite connection: allows user to specify LockingModel and SynchronouMode

Add features to allow a(dvanced) user to specify LockingMode and SynchromousMode:

Either add them to the existing Params property, or, add a NEW PRAGMAs property, so user can add SQLite pragmas to be executed at TSQLiteConnection.Create.
Thank you.

This is achieved using SQL:

This feature will not be implemented.