Integration with central server

[codersharma2001]

Created the Integration between the Central Server and CoW Template Server

[github-actions]

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[fhenneke]

Hey @codersharma2001,
thanks for taking your time to create a pull request!

I have difficulties in understanding the goal and the code changes of this PR.

• Could you please elaborate on what you are trying to achieve with the code in this PR? Is it about implementing a simple solver which checks prices at some external venue? Is it supposed to be general functionality for a template solver or an example of a specific solver?
• There are references to http://localhost:3000/bestRates, but no way for me to check what it does. To test the code I need to be able to run it on my machine.
• This PR changes every file in the repository. Is this due to some misconfiguration with regards to line endings? Please have a look here.