Release v0.1

[dr-orlovsky]

Core features

• RGB Stash daemon operating client-validated data and managing their file
  storage
• Fungible daemon operating RGB-20 assets and managing their storage (both file
  and SQLite)
• RGB-20 asset issuance, invoicing, trnasfer and transfer acceptance
• Command-line tool for daemons operations
• Itegration functions packed as a compiled library

New features since RC2

• SQLite storage for assets cached data
• Storage of public key tweaking information in PSBT
• Support of Rust stable and old version up to 1.41.1
• Update to the latest public releases of upstream bitcoin and LNP/BP libraries
  (migration from self-maintained forks)

Breaking changes

• Standard-compliant use of PSBT extension fields.
• Removed requirements to specify fee for the transaction (it is now computed
  from PSBT data)