Stelar altcoin plugin and wallet environment

[olemis]

Feature description

Stellar altcoin plugin and wallet environment

Is your feature request related to a problem? Please describe. No support for Stellar in wallet.

Describe the solution you'd like Initial classes and entry points for integrating Stellar accounts into FiberCrypto wallet.

Possible implementation

• [ ] Initial implementation of Stellar altcoin plugin
• [ ] Find out about popular Stellar software wallets
• [ ] Implement wallet environment (and storage) compatible with popular wallet file formats
• [ ] Not implemented placeholders for the other main classes