[LookupList] StringLL.add() and LL.set(k,v) now return location index
[LookupList] StringLL.add() and LL.set(k,v) now return location index

- StringLookupList.add(value:String)->Int32
  - Add the given string to this lookuplist if not already present.
  - In either case returns the index of the string.

- LookupList.set(key:String,value:$DataType)->Int32
  - Sets or reassigns 'key' to map to 'value'.
  - Returns the index of the stored value.

Plasmaworks/Rogue,Plasmaworks/Rogue,Plasmaworks/Rogue,Plasmaworks/Rogue,AbePralle/Rogue,AbePralle/Rogue