Server specific advanced config file for testsuite

Hi Dave,

     As we know that, we are using two JSON files one is for basic configuration of server(test_config.json) and second for detailed configuration of server(test_advanced_config.json).

In test_advanced_config.json, we give detail for database, schema, extension, collation etc. These details are generic I mean these details are not server specific. 

- Do we need to allow user to give server specific details?

If yes, there should be some identification(like ‘server_type’, ‘version’) for each detail so that we can read server appropriate details.

We have one approach in mind, to attach 'server_type' & 'version' to each detail

So, modified test_advanced_config.json can be like this,

Any suggestions?

For multiple server currently we used 'owner' to identify the server, but that fails if two servers have the same owner.