new_IDP_gen.py requires error handling

[justinliuyuwang]

currently quits if sc missing
line must be in try block:

tvb-ukbb/tvb_bb_QC/new_IDP_gen.py

Line 164 in 5f59271

with open(SC_path) as f:

[justinliuyuwang]

Not currently catastrophic - SC and TL are the last IDPs to be generated in the script.