Slices and Lifetimes

In this segment:

• Slices: &[T] (10 minutes)
• String References (10 minutes)
• Lifetime Annotations (10 minutes)
• Lifetime Elision (5 minutes)
• Struct Lifetimes (5 minutes)
• Exercise: Protobuf Parsing (30 minutes)

This segment should take about 1 hour and 10 minutes