[TODO] Provide endpoint for product tracking key stats

[joyboyisfree]

TODO

🎯   What is the problem that needs to be solved?

🗒   Summary

Provide endpoint for product tracking key stats

✅   Outcomes

• Total Bonded Volume
• Total Unbonded Volume
• Total Stake Redistribution Volume
• Number of Unique Users
• Total Current Stake Volume being managed by YieldScan

⏳   ETA

By 19th December, 2020 - EOD IST