[ARROW-4927] [Rust] Update top level README to describe current functionality

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.12.0
• Fix Version/s: 2.0.0
• Component/s: Rust
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/21435
• Assignee: Jorge Leitão
• Reporter: Andy Grove
• Created: 16/Mar/19 15:54
• Updated: 11/Jan/23 07:37
• Resolved: 03/Oct/20 21:31

Description

Update top level Rust README to reflect new functionality, such as SIMD, cast, date/time, DataFusion, etc

Issue Links

• links to: GitHub Pull Request #8313