Resample fix

[MatthewMallory]

This was intended to be a small edit to the resample function, but didnt realize I committed changes to projection matrix as well. Details below:
change how proj mat can be run (locally and hpc)
when hpc is used, create an aggregate function that groups the individual cells proj mat files into a full cell x target matrix
change how proj mat is extracted for efficiency, uses a morphology dataframe
Now use count_method to support 1) node counting (which results in an axon length proj mat), 2) tip node counting (which results in # of tip nodes proj mat) and 3) branch node counting (which results in # branch nodes proj mat)

The resampling fix was for a unique case. When the grandchild node of the soma was irreducible, that node would appear twice in the resampled morphology.

e.g. resampling these nodes:
test_nodes = [
{'id': 1, 'type': 1, 'x': 0, 'y': 0, 'z': 0, 'r': 1.0, 'parent': -1}, # Soma
{'id': 2, 'type': 3, 'x': 1, 'y': 0, 'z': 0, 'r': 0.5, 'parent': 1}, # Branch point
{'id': 3, 'type': 3, 'x': 2, 'y': 1, 'z': 0, 'r': 0.5, 'parent': 2}, # Leaf
{'id': 4, 'type': 3, 'x': 2, 'y': -1, 'z': 0, 'r': 0.5, 'parent': 2}, # Leaf
]

would yield:

[{'id': 1, 'type': 1, 'x': 0, 'y': 0, 'z': 0, 'radius': 1.0, 'parent': -1},
{'id': 2, 'type': 3, 'x': 1, 'y': 0, 'z': 0, 'radius': 0.5, 'parent': 1},
{'id': 3, 'type': 3, 'x': 1, 'y': 0, 'z': 0, 'radius': 0.5, 'parent': 2}, # duplicate node as 2
{'id': 4, 'type': 3, 'x': 2, 'y': -1, 'z': 0, 'radius': 0.5, 'parent': 3},
{'id': 5, 'type': 3, 'x': 2, 'y': 1, 'z': 0, 'radius': 0.5, 'parent': 3}]

Which is not...wrong per say, but best to be fixed.

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