[BUG] Use fable compliant tryparse

[Freymaurer]

Replace custom helper functions with baked in fable utils. To be honest, i am confused as i was sure this returned an error, but the following code runs for me with fable, maybe we must update fable dependency dotnet tool update fable and then it will run correctly?

module TestInt =
  let actual = System.Int32.TryParse("42")
  let parsable, v = actual


  printfn "%b" (parsable = true)

  printfn "%b" (v = 42)


module TestFloat =
  /// use System.Double.TryParse with CultureInvariant
  let Culture = System.Globalization.CultureInfo.InvariantCulture
  let actual = System.Double.TryParse("42.69", System.Globalization.NumberStyles.Float, Culture)
  let parsable, v = actual

  printfn "%b" (parsable = true)

  printfn "%b" (v = 42.69)
  printfn "%A" v

module TestBool =
  let actual = System.Boolean.TryParse("true") // fails for python
  let parsable, v = actual


  printfn "%b" (parsable = true)

  printfn "%b" (v = true)