Feat/add connector bingx

[ViralV00d00]

Before submitting this PR, please make sure:

• [ ] Your code builds clean without any errors or warnings
• [ ] You are using approved title ("feat/", "fix/", "docs/", "refactor/")

A description of the changes proposed in the pull request:

Tests performed by the developer:

Tips for QA testing:

[nikspz]

hi @ViralV00d00 please be informed that new connectors PR should be headed to the development branch https://hummingbot.org/developers/contributions/ https://hummingbot.org/developers/contributions/#checklist

Also please check new connector adding governance process here (New Connector Proposal): https://hummingbot.org/governance/proposals/#new-connector-proposals