Add remote support to resources.Get

[vanbroup]

Implement resources.FromRemote, inspired by #5686

Closes #5255
Supports #9044

[vanbroup]

One example use case is the RSS/XML feed parsing as discussed in #9044 another use case could be the generation of Open Graph images (in this case using https://bruzu.com):

   {{- $image := resources.FromRemote ( print "https://img.bruzu.com/?" (querify 
        "bi" "https://example.com/img/og-background.png" "h" "627" "w" "1200"
        "a.oy" "top" "a.ox" "left" "a.x" "100" "a.y" "100" "a.w" "1000" "a.h" "68" "a.c" "#ffffff" "a.ta" "left" "a.fs" "40" "a.lh" "1" "a.fw" "900" "a.ff" "Roboto" "a.maxHeight" "120"
        "b.tp" "textbox" "b.x" "100" "b.y" "200" "b.w" "1000" "b.h" "244" "b.oy" "top" "b.ox" "left" "b.c" "#ffffff" "b.ta" "left" "b.fs" "20" "b.lh" "1.2" "b.fw" "400" "b.ff" "Roboto" "b.ox" "left" "b.oy" "top" "b.maxHeight" "250"
        "a.t" .Title
        "b.t" .Summary
    )) -}}
    <meta property="og:image" content="{{ $image.Permalink }}" />

[vanbroup]

Addressed the comments and implemented options, you can now specify the request headers in the options, optionally combined with a request method and body (see also related issue #7699).

{{ $postResponse := resources.Get "https://example.org/api"  (dict 
    "method" "post"
    "body" `{"complete": true}` 
    "headers" (dict 
        "Content-Type" "application/json"
    )
)}}

[bep]

I will merge this once the tests go green, it looks very good, I really like how the API turned out.

[github-actions]

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