Predictions / Test & Score: output Evaluation Results as a regular table

**What's your use case?**
**What's your proposed solution?**
The evaluation results of Predictions and Test & Score can only be used as input to a limited number of widgets. I would like to be able to further process or save this table. I assume it wouldn't require a lot of effort to have also this output treated as a 'normal' table. Other widgets can do this with similar descriptive output, e.g., the coefficients of Linear Regression, or the correlations produced by the Correlations widget.

**Are there any alternative solutions?**
I guess further processing and/or converting to a regular table is possible using Python Script, but I haven't yet found out how to process the Object format of the current evaluation outputs there. This is perhaps because my Python coding abilities are basic (yet not completely absent).
Otherwise, the evaluation results can be copy-pasted from the evaluation widgets to a spreadsheet, but this doesn't preserve the column names.

Start with the Predictions and Test & Score widgets, then inspect how their evaluation outputs are represented compared with the regular tables produced by other widgets. The work is done when these results can be output as a regular table, with column names preserved and usable for further processing or saving.

Written by the indexing model from the issue text.