openbraininstitute / neurodamus / 23442697057

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Commit Message

Support Allen's V1 point neuron model (#422)

## Context
Support simulations with the Allen's V1 circuit:
- nodes types: biophysical and point_process
- edges types: Exp2Syn_synapse and point_process

To allow for external customer synapse models (e.g.
https://github.com/openbraininstitute/neurodamus-models/tree/main/Allen_V1),
Neurodamus removes the check of BBP synapse models
`ProbAMPANMDA_EMS.mod`, warning instead of error. Removes the obsolete
BGLIBPY_MOD_LIBRARY_PATH env var.

## Scope
In `allen_point.py`:
- `AllenPointEngine` to handle Allen's point process nodes and edges
- `Exp2SynSynapseRuleManager` and `Exp2SynSynapseReader` to read the
Exp2Syn_synapse edges type which uses different synapse parameters and
synapse models from the BBP circuit. Currently Neurodamus treats
Exp2Syn_synapse edge as projections rather than inner connectivity
because of the limitation in sonata_config.py:make_circuit (its node
type is still biophysical so it's passed to METypeEngine). But it
doesn't change anything for the underlying netcons.

## Testing
- New test env `unit-allen-v1` is created in tox.ini
- New ringtest circuit for allen-v1 model, nodes, edges and synapse
replay inputs
- `tests/unit-allen-v1/test_ringcells_allen_v1.py`: check cell states
for biophysical cell and point cells.

## Review
* [x] PR description is complete
* [x] Coding style (imports, function length, New functions, classes or
files) are good
* [x] Unit/Scientific test added
* [ ] Updated Readme, in-code, developer documentation

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