MIME Decoder Add-on for Cisco ESA

### Let me know any feedback ### Splunk MIME Decoder add-on allows for decoding MIME-encoded (URL-encoded) strings. It was developed to decode field values containing ciphered email subjects as a by-product of an email going through Cisco ESA email proxy. Add-on provides a custom search command to do this. The main advantage of this command is that it is able to decode any MIME-encoded string in any charset, not just in UTF-8 which is a limitation of standard SPL eval function `urldecode`.