[Implemented] Extend the for each syntax

[Theo69]

For each syntaxes:

With index:

For Each s In list with index i As Integer
  DoSomething(s);
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Matching syntax:

For Each Matching b As Button In List
  DoSomething()
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Combination:

For Each Matching b As Button In List with index I As Integer
  DoSomething()
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