AbsaOSS / AbsaOSS/spark-partition-sizing

Add skew suppression in `DataFramePartitioner`

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enhancement
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Scala
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描述

## Background
The partitions can be within the required limits provided to `DataFramePartitioner` repatriating methods. But they can still be very non-uniform in size.

## Feature
Add the possibility to suppress such size skews when the repartitions are requested.

## Proposed Solution
Solution Ideas:
1. Seems _standard variation_ would be a good measure for that.

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