gchq / gchq/CyberChef

Operation request: MIME rfc2047

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help wanted operation
Dominant language
JavaScript
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Description

### Summary
can you please add email MIME header decoding. see the following for info and examples
https://www.ietf.org/rfc/rfc2047.txt
http://dogmamix.com/MimeHeadersDecoder/

### Example
input:
From: =?US-ASCII?Q?Keith_Moore?=
To: =?ISO-8859-1?Q?Keld_J=F8rn_Simonsen?=
CC: =?ISO-8859-1?Q?Andr=E9?= Pirard
Subject: =?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=
=?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=

output:
From: Keith Moore
To: Keld Jørn Simonsen
CC: André Pirard
Subject: If you can read this you understand the example.

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