Feat/add apy and rewards estimation

[djhahe]

Summary (Please recap what you changed or fixed)

Checklist (If you won't pass this checklist please comment why)

• [ ] I removed all commented or unnecessary code.
• [ ] Provide the screenshots due to UI changed or bug fixed
• [ ] My code has covered these test cases (please list down your tested cases):

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
2 Code Smells

No Coverage information
0.0% Duplication