Event screen soroban conversion

[wvwatson]

• [x] New repository for stellar/soroban/rust
• [x] Convert Event smart contract CRUD functionality
• [x] Convert front end vanilla javascript to use soroban-sdk
• [ ] Convert front end vanilla javascript to use reactnative

https://github.com/dossinstitute/sidequestproposals/issues/13

[wvwatson]

points @Fr0z0n3 13 @noireconnect2024 13 @wvwatson 13

[wvwatson]

"Please note, the direct interaction with Soroban contracts via the Stellar SDK is not yet fully supported as of my last update"