Snowflake - adopt JDBC parameter CLIENT_METADATA_REQUEST_USE_CONNECTION_CTX

**Is your feature request related to a problem? Please describe.**
I specify JDBC URL like this:
`jdbc:snowflake://.snowflakecomputing.com:443?warehouse=&db=&CLIENT_METADATA_REQUEST_USE_CONNECTION_CTX=true`

Despite I use CLIENT_METADATA_REQUEST_USE_CONNECTION_CTX=true , INFORMATION_SCHEMA.SCHEMATA contains schemata from all warehouses and databases (the user has access to everywhere).

In our platform, when I use this parameter and I call e.g. dbMetadata.getTables() , it collects only tables from corresponding warehouse and database.

Querying all warehouses can be very expensive causing SELECT from Drill INFORMATION_SCHEMA takes ages.

**Describe the solution you'd like**
Parameter CLIENT_METADATA_REQUEST_USE_CONNECTION_CTX is properly propagated to the connection from Drill to Snowflake, only objects from warehouse/database specified in the JDBC URL are populated into Drill INFORMATION_SCHEMA.

**Describe alternatives you've considered**
The only workaround solution is to limit privileges of DB user (what warehouses/databases he can see). This is not a valid workaround in our case (testing user has read access to huge number of testing warehouses/databases).