Added support for payable address

[maxsam4]

Added support for payable address. Added test case as well.
props to @duaraghav8 for the original fix in solparse.

[maxsam4]

Those who want to use solidity-coverage with solidity 0.5 immediately can get the build parser file from https://raw.githubusercontent.com/maxsam4/solidity-parser/solidity-0.5/build/parser.js and replace the one in your node modules.

The above file combines this PR and #17

[BlinkyStitt]

How do we get someone with access to merge this to review?

[angus-hamill]

@wysenynja it appears the only one with write access is @cgewecke who hasn't been active for months. I dropped him an email but he hasn't responded

[pedrobranco]

I'm also waiting for #17 and #18.

It has been months since last online activity of @cgewecke. Time to fork the solidity-parser and dependencies like this one? 😬

Maybe the next fork should have more than one maintainer to prevent these situations 😕

[maxsam4]

Fixed parsing of uint256[] memory yolo = abi.decode(_world, (uint256[]));