Renamed function Pmap -> PMap and added PMap for different combinations of input type and output type

Map -> MapInt, MapStrInt ...
Filter -> FilterInt, FilterStrInt ...
FilterMap -> FilterMapInt, FilterMapIntStr ...
PMap -> PMapInt, PMapIntStr ...
Distinct
Drop
DropWhile
Every
Max
Min
MinMax
Range
Remove
Reduce
Rest
Some
TakeWhile

Auto generated functions for user defined data type
Map
Filter
FilterMap
Pmap
Reduce
Remove
Some
TakeWhile
DropWhile
Every
Rest