V115 QUICK FF LOAD CSV STRUCT COMPILE FIX

Base
- Starts from V114.

What changed
- Fixes the Quick finite-fault CSV loader compile error caused by declaring struct QuickFFLoadedCellTmp inside a function parameter list.
- Moves QuickFFLoadedCellTmp to file-scope typedef so the loader helper and local array use the same type.
- Normalizes the loader helper call argument list in case a previous patch produced a trailing comma without the cells argument.

Functional behavior
- Same as V114; this is a compile fix only.
