Proposal: Better Strings.Replace function

I found that the `Microsoft.VisualBasic.Strings.Replace` function had a strange behavior.
The following program replaces Japanese full-width characters "ポ" and half-width characters "ﾎﾟ" with "po":
```vbnet
Module Program
Sub Main(args As String())
Dim replaced = Replace("ポポポポ",
Find:="ﾎﾟ", Replacement:="po",
Compare:=CompareMethod.Text)
MsgBox(replaced)
End Sub
End Module
```
The expected result is "popopopo". But actually the value of `replaced` is "popo". It's inconsistent with the `Range.Replace` function of Excel. Is this a bug?
If it's by design (for better performance or back-compatibility), I recommend adding another "Replace" function (Overloads the original `Replace` and optionally mark the original `Replace` obsolete) to help us reduce the number of bugs written in the future.