- do not set in/outFIFODepths attrs to 0 after setting
- do not set in/outFIFODepths attrs to max() in InsertFIFO
- special handling of first/last FIFO depths for characterization

cnv has unrelated bug for now

Add Kv260 board 

[set_fifo_depths] Adding a new transformation to split fifos larger than the max allowed depth

[Hotfix] Update setup-python in pre-commit gha

[Hotfix] Add missing Jenkins marker in fifosizing test

[CustomOp] Fix setting of NumReps in Thresholding and N in Eltwise node

[Hotfix] Update minimize accumulator width for bipolar case

Fixes for automatically generated documentation

Predecessor handling refactor and identity fallback

Hotfix: Updating code to use correct numpy types

Hotfix: delete numpy.str in datapacking