Update Connection Management API to allow the ability to automate updating Key's

Currently the connection management API allows a user to update connection information in an automated way. But when using KeyPair auth as Snowflake will be requiring very soon - we cannot use the same API to update the physical key. The current flow requires an admin to manually update a key by copy and pasting it into the file management. It is incredibly tedious and cumbersome for a user to have to update these one by one. 

I imagine more Sisense customers will realize this pain as the Snowflake timeline for KeyPair auth nears.