Creating new generic tests for redshift adapter

[gekas93]

resolves #
Issue 291 N/A

Problem

When you try to run some test with columns with special characters in the names like '.' or '-' you receive a sintax error.
It happens with each generic test defined.

Solution

We have created a new dbt macros for each test to the redshift adapter that supports special characters adding quotes to the column names.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX