Add TVL for all privacy projects

[undecidedpathways]

Using the data from #1939, We can build a separate dashboard that grabs the total TVL info across all ecosystems

[undecidedpathways]

Good resources for TVL for privacy projects

https://defillama.com/protocol/tvl/privacy-pools
https://shieldedeth.com/
https://defillama.com/protocol/tvl/tornado-cash