v0.3.0

• Add --expert mode
• Add more explanations for special nodes
• Show a few logical offsets for viewed nodes
• Show how much data is shared with other paths
• Improve handling of samples in unresolved roots
• Improve display of errors
• Improve display of sample durations
• Improve performance and memory usage
• Fix compilation with older D versions
• Fix handling of paths with invalid UTF-8
• Experimental AArch64 build