Change the name of the prediction column

[stavrostheocharis]

Description

In model base name the target column of the prediction as "prediction" Need to change it because it creates confusion.

Solution

Change the name of the "prediction" to "target_column". Make the appropriate changes across the code where this variable sis being used.

Additional context

[stavrostheocharis]

It is solved in commit https://github.com/whitebox-ai/whitebox/pull/131/commits/bb7e4f534f74bcac93bca2e9264772c8951d2e26 in https://github.com/whitebox-ai/whitebox/issues/114#event-8387922964

[momegas]

Closing this 🙏