No spot module after install

[xomyakes]

When trying to install huobi_sdk_python there's no spot module. I think that happens because of no init.py in src/huobi/spot. Can you fix it please?

[coccoinomane]

This issue was fixed in #3.

@ad-long @foonsun All is left to do is publish a new version in PyPi... pretty please? 🥺