WSplit parser should accept OldTime values

[glacials]

Right now the WSplit parser expects a 0 as the second value for each split:

Captain Jelly,0,1256.61,719.44

But it can be a nonzero value if the user uses WSplit's "Set this run as old" function. We should accept a normal-looking time there. We won't be using it, but the parser should consume it instead of panicking.