[Feature] Support SQL string composition

The redshift connector currently supports parameterised queries (aka bind variables) which is great.

However some of our use cases require other parts of a Redshift SQL query to be dynamically created. These include components such as the table name, the schema... and are commonly referred to as Identifiers. For example ``` f"SELECT * FROM {schema}.{table}"```

Other libraries such as [pg8000](https://github.com/tlocke/pg8000#many-sql-statements-can-t-be-parameterized) and [psycopg](https://www.psycopg.org/docs/sql.html) have developed modules to escape these variables via identifiers.

Beyond usability, the main advantage of this approach is that it helps with SQL injection attacks.

Empieza revisando el soporte existente del conector para consultas parametrizadas y, después, compara los enfoques de composición de identificadores documentados por pg8000 y psycopg. Se considerará completado cuando los usuarios puedan componer de forma segura identificadores dinámicos de Redshift, como esquemas y nombres de tablas, con protección frente a SQL injection.

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