Add MurmurHash3 Operation

[AliceGrey]

Fixes #1375

[AliceGrey]

This is useful for generating favicon hashes for threat hunting in Shodan
Recipe:

To_Base64('A-Za-z0-9+/=')
Find_/_Replace({'option':'Regex','string':'(.{76})'},'$1\\n',true,true,true,true)
Find_/_Replace({'option':'Regex','string':'$'},'\\n',true,false,false,false)
MurmurHash3(0)

[AliceGrey]

Rebased

[AliceGrey]

I believe I may have found a bug. Converting it back to a draft for now.

[AliceGrey]

Should be g2g now

[a3957273]

Thanks for the contribution @AliceGrey, this looks really good. :)