Remove en-dashes and replace with correct hyphens

[KBerstene]

In a lot of the Invoke-RestMethod calls, the hyphen (-) characters are actually en-dash (–) characters. If a function from these samples is copied into a PowerShell window, it usually converts to plain text and replaces the en-dash characters with hyphens. However, if the code is downloaded or copied into a program that accepts the en-dash characters, then the code is saved and imported into PowerShell (e.g. through a module file), the Invoke-RestMethod command will fail with an error:

Invoke-RestMethod : A positional parameter cannot be found that accepts argument 'â€Headers System.Collections.Hashtable â€Method'.

This pull request removes all en-dash characters currently present in .ps1 files and replaces them with correct hyphens.

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[KBerstene]

@microsoft-github-policy-service agree