Add BNB chain to Charts and all the backend

[de-snake]

[harsh-98]

6e370d9e3f04464713d0c3308fb8265e715d4b83 to sdk-go.

https://github.com/Gearbox-protocol/charts_server/pull/47 to charts_server.

To third-eye Gearbox-protocol/third-eye#101