(#1279) Fix resending cookies in Get-WebFile

[Cubix651]

HttpWebRequest does not resend cookies after redirection. This commit resolves that problem by manual loop.

Closes #1279.

[ferventcoder]

Hi @Cubix651 - there is a lot of change here and it is a bit hard to reason about the changes. Sorry I didn't comment before. We'll need to find a better way to see what has changed here.

[AdmiringWorm]

@ferventcoder https://github.com/chocolatey/choco/pull/1308/files?w=1
Easier to see the changes

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