Initial data commit

Task/Variable-declaration-reset/F-Sharp/variable-declaration-reset.fs

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+// Variable declaration reset. Nigel Galloway: June 21st 2022
+let s=[1;2;2;3;4;4;5]
+// First let me write this in real F#, which rather avoids the whole issue
+printfn "Real F#"
+s|>List.pairwise|>List.iteri(fun i (n,g)->if n=g then printfn "%d" (i+1))
+// Now let me take the opportunity to write some awful F# by translating the C++
+printfn "C++ like awful F#"
+let mutable previousValue = -1
+for i in 0..s.Length-1 do
+  let currentValue=s.[i]
+  if previousValue = currentValue then printfn "%d" i
+  previousValue <- currentValue