Add ER with selective backprop

[lballes]

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Coverage report

Note

Coverage evolution disabled because this PR targets a different branch
than the default branch, for which coverage data is not available.

The coverage rate is 84.94%.

44.23% of new lines are covered.

Diff Coverage details (click to unfold)

src/renate/updaters/experimental/selective_er.py

44.44% of new lines are covered (44.44% of the complete file).
Missing lines: 32, 33, 34, 35, 36, 43, 44, 45, 46, 47, 48, 49, 51, 54, 56, 57, 58, 59, 60, 62, 63, 65, 66, 106, 114

src/renate/cli/parsing_functions.py

42.85% of new lines are covered (76.57% of the complete file).
Missing lines: 110, 116, 540, 541