Update URL for NIRS files to Brainstorm server

[rcassani]

Change the URL for fluence NIRS files to Brainstorm server

From: http://thomasvincent.xyz/nst_data To: https://neuroimage.usc.edu/resources/nst_data

NIRS files hosted in Brainstorm server:

nst_data/
├─ fluence/
│  ├─ MRI__Colin27_4NIRS/
│  │  ├─ fluence_685nm_v000001.mat
│  │  ├─ fluence_685nm_v000002.mat
⋮   ⋮  ⋮      ⋮      ⋮       ⋮     ⋮     
│  │  ├─ fluence_685nm_v010242.mat
└  └  └─ fluence_file_sizes.csv

[Edouard2laire]

Thx @rcassani :)