-------------
- Don't force loading of neurons into memory for Population (922). See new API of
:class:`Population<neurom.core.population.Population>` and `load_neurons<neurom.io.utils.load_neurons>`
- Move ``total_length`` feature to from ``neuritefunc`` to ``neuronfunc``. Use ``neurite_lengths``
feature for neurites
- Include morphology filename extension into Neuron's name
- Extend ``tree_type_checker`` to accept a single tuple as an argument. Additionally validate
function's arguments (912, 914)
- Optimize Sholl analysis code (905, 919)