Add `model_meta` processing to `MetricsApp` for labels colouring

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Feature Description

• Add optional argument model_meta to MetricsApp.construct method
• model_meta is pd.DataFrame with obligatory Columns.Model columns. All other are model params
• Join models meta and models metrics during construct method
• In the widget add option to colour dots on scatter plot not by model name but by any of the provided model meta params (like dimension size, k_neighbours, etc.)

Why this feature?

It is useful for real services research

Additional context

No response