Cannot run tests on non-default host

[ikudjoi]

Issue description

The connector tests are trying to run the tests agains server [account].snowflakecomputing.com. There is no way to configure the tests to use other server instead, e.g. [account].eu-west-1.snowflakecomputing.com instead.

Example code

Run tests with parameters.json using server that is not located at US west AWS region.

Error log

Running tests from command line will result in this error message.

Error Message:
 System.AggregateException : One or more errors occurred. (A task was canceled.)
  ----> System.Threading.Tasks.TaskCanceledException : A task was canceled.

Configuration

Driver version:
Snowflake.Data 1.0.4

Dotnet framework and version:
.net standard 2.0

Server version:
3.0.5

Client OS:
Windows 10

[ikudjoi]

I'm about to place a pull request to fix this.

[howryu]

Merged #78