Add ContractParameter type Map support

[ixje]

Add new feature: https://github.com/neo-project/neo/pull/374/files

[ghost]

I'll take a look at this :)

[LysanderGG]

@haighio Hello! Any progress on this issue?
Otherwise I'd be happy to take a look during the holidays.

[ghost]

Hey! I got stuck with a project at work in the lead up to the holiday, but going to carry on finishing it this week :)

…

On Fri, Dec 28, 2018 at 8:47 AM Guillaume George ***@***.***> wrote: @haighio <https://github.com/haighio> Hello! Any progress on this issue? Otherwise I'd be happy to take a look during the holidays. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#604 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/Aqtqn3VktDZfI8zd-OKNkfmjKa_xqG7Nks5u9dqtgaJpZM4WldNk> .

[ixje]

great! Looking forward to your PR