[Feature] Support KRC-20

[unisol1020]

Is your feature request related to a problem? Please describe.
It can be frustrating to manage KRC-20 tokens externally, as OneKey currently does not support this token standard directly. Many users rely on OneKey to handle various token standards seamlessly, so adding KRC-20 would streamline wallet management for those holding KRC-20 assets

Describe the solution you'd like
Support for KRC-20 tokens on the OneKey wallet would allow users to view, send, and receive KRC-20 tokens alongside other supported assets directly in the wallet, providing a more unified experience for users with diverse token holdings.

Describe alternatives you've considered
Alternatives include managing KRC-20 tokens on other dedicated wallets, which introduces complexity and inconvenience for users managing multiple assets across different platforms. Integrating KRC-20 support in OneKey would eliminate the need for external wallets.

Additional context
KRC-20 is a widely-used token standard, and supporting it on OneKey could attract users from the Kaspa ecosystem. Any additional information on planned support for similar tokens, or considerations for integration, would be helpful to know.