v0.7.0

Added

• Project files (.edbproj) - File ▸ Export project… / Import project… (Ctrl+Shift+P / Ctrl+Shift+I,
  drag-and-drop) and edb-explorer project export|info|import|trust. A project records the open databases with
  their SHA-256, the open tabs (filters, hidden columns, SQL text), the dock layout and notes, and can embed the
  evidence files so it is self-contained. Every member is pinned by a SHA-256 hash map that is verified before
  use and evidence files are re-hashed on import (embedded or located by path / relative path / name + hash);
  the hash map is signed with Ed25519 (key created on first use, signer fingerprint shown, trust store of
  accepted signers); a password encrypts the manifest and embedded files with AES-256-GCM (scrypt), in 4 MiB
  authenticated chunks so files of any size stream. Format documented in docs/projects.md; cryptography is
  now a dependency.

Full Changelog: v0.6.1...v0.7.0