### Changes
- __Breaking__: rename module hp_search to hpsearch
- Potential fix for training routine that lead to incomplete epochs because not enough batches could be extracted.
- increase Shuffle buffer size to 20000
- add initializers as parameters to model architectures.
- two new parameter in orcai_parameter["model"]
- "conv_initializer": default "glorot_uniform" (the keras default), "he_normal" might be better suited for layers with ReLU activations
- "lstm_initializer": default "glorot_uniform" (the keras default), which should be fine for LSTMs. Included for completeness.
- if values are not in orcai_parameters.json, the default values are used.
- __Breaking__: removed maskedAUC reporting. Class is still available but unused.
- parameter orcai_parameter["monitor"] can only be "val_MBA"
- minor refactoring