Daff

Results 2 issues of Daff

Uses 'm/44'/501'/0'/0' for the derivation path, same as in Sollet or Phantom wallet. Code based on used for Stellar. This should close #545

For example, [this](https://sample.netlify.app) and [this](https://vredeburg.netlify.app) are completely different website, although has same domain name. But, Survol treat those as same. ![](https://i.imgur.com/mTOsOTZ.jpg) This changes will make Survol treat those websites different....