LRP rule coverage for Flux layers

[adrhill]

This issue keeps track of which Flux layers in the model reference got LRP implementations.

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Basic layers

• Dense
• flatten

Convolution

• Conv
• DepthwiseConv
• ConvTranspose
• CrossCor

Pooling layers

• AdaptiveMaxPool
• MaxPool
• GlobalMaxPool
• AdaptiveMeanPool
• MeanPool
• GlobalMeanPool

General purpose

• Maxout
• SkipConnection
• Chain Support nested Flux Chains in LRP #119
• Parallel Add LRP support for Parallel layer #10
• Bilinear
• Diagonal
• Embedding

Normalisation & regularisation

• normalise
• BatchNorm Enable BatchNorm layers in LRP #129
• dropout
• Dropout
• AlphaDropout
• LayerNorm
• InstanceNorm
• GroupNorm

Upsampling layers

• Upsample
• PixelShuffle

Recurrent layers

• RNN
• LSTM
• GRU
• Recur

[adrhill]

Closed by #157.