Improvement in typescript and web3

[ondratra]

I propose changes to generated code:

• export default instead of plain export in generated classes
• replace web3.eth.contract(contractAbi).at(address) with new web3.eth.Contract(contractAbi, address) in generated classes
  -> support for web3 1.x
• create new exposed function abi2wrapper(abi: Object, options: Object): string that convert single ABI to TS wrapper class and will contain most of processFile()'s source code (calling generateSource)

[krzkaczor]

Hey!
Sorry to keep you waiting, I somehow missed this issue.

I think all of these problems will be solved when typechain starts to support user-provided templates but here's my reasoning:

1. https://blog.neufund.org/why-we-have-banned-default-exports-and-you-should-do-the-same-d51fdc2cf2ad
2. Support for 1.x is discussed in: Support for web3 1.0.0 #25
3. The problem here is how to link generated files with the runtime. I think runtime path has to be part of options object here.

[krzkaczor]

3 is covered by #72 Thanks! Others are already discussed so I am gonna close this for now.