add yan 2023 parcellation with kong 17 networks and multiple resolutions.

[GasserElbanna]

In this PR, I integrated the yan 2023 homotopic parcellation proposed here with multiple resolutions (from 100 to 1000 parcels) matched with Kong 17 networks.

prepare_yan_kong17.py follows similar setup as prepare_mmp.py

To give the user the flexibility to select the resolution desired, I added an argument in the load_hcp_parcellation . However, in this PR, as a consequence, the user needs to load the parcellation using the function instead of the preloaded setup.

yan_kong17 = load_hcp_parcellation('yan_kong17', resolution=1000)
hcp.view_parcellation(hcp.mesh.inflated, yan_kong17)

HTML examples for the loaded parcellations for all resolutions are provided in the parcellation_examples directory.