Unify and differentiate default values for ports

[ckunki]

ITDE implementation specifies port numbers in multiple places.
Default Ports depend on version of Exasol database and deployment variant.
The current ticket requests to harmonize the default values, documentation and variants in a uniform way.
Maybe class PortForwarding can be used to grab all variants and provide a uniform access to them.

Default Port	Earlier versions	Later versions
For database in Docker Container	8888	8563
For database w/o Docker Container	8563	8563
For Bucketfs	6583	2580

See also file cli/options/test_environment_options.py

This should be respected by ITDE implementation but should be released with incremented major version.

[ckunki]

This ticket goes beyond #340 and is not in conflict with the changes describes.

[ckunki]

Efforts are recorded in ticket #308