[C++] ODBC - Implement SQLDriverConnect to handle FILEDSN and SAVEFILE keywords according to the spec

### Describe the enhancement requested

We need to implement  FILEDSN and SAVEFILE keywords in the ODBC driver according to spec: https://learn.microsoft.com/en-us/sql/odbc/reference/syntax/sqldriverconnect-function?view=sql-server-ver16

Parent issue: https://github.com/apache/arrow/issues/30622

### Component(s)

Documentation, FlightRPC