ratasm 0.1.5

Added

• Programs now run in an interactive pseudo-terminal in the Output panel, with
  keyboard and paste input, Unicode, ANSI colours, cursor movement, resizing,
  scrollback and process-group stopping.
• Debugged programs use the same terminal through GDB's inferior TTY. Debugger
  waits run in the background, so the interface remains responsive while an
  inferior waits for input.
• F3 copies a truncated status message in full to Output.
• CI checks dependency advisories, licences, sources and duplicate versions
  with cargo-deny.

Changed

• Ratatui, Crossterm and VT100 were updated together. This removes the
  unmaintained paste dependency and unifies text measurement on
  unicode-width 0.2.
• Subdued theme colours now meet WCAG's 4.5:1 normal-text contrast threshold.

Fixed

• Closing a modified buffer now asks whether to save, discard or cancel instead
  of silently losing the edits.