Added M1 MacBook Air 13" 2020

[jamesdbailey]

M1 MacBook Air 13" 2020; Xcode 13.1; macOS 12.0.1

fix #220

Checklist

If you have any non-Apple hardware components - submit your results to the Custom Hardware table.

• [x] I performed all steps to correctly run XcodeBenchmark.
• [x] I used Xcode 12.5 or above.
• [x] I attached a screenshot with a compilation time and other fields, example.
• [x] I confirm that Time column is still sorted.
• [x] The content in cells is centered.

[ylz-at]

I got similar result on my M1 Air, 8 Core, 16G, 1T.

Please merge this @devMEremenko .

** BUILD SUCCEEDED ** [146.097 sec]

System Version: 12.0.1
Xcode 13.1
Hardware Overview
      Model Name: MacBook Air
      Model Identifier: MacBookAir10,1
      Total Number of Cores: 8 (4 performance and 4 efficiency)
      Memory: 16 GB

✅ XcodeBenchmark has completed
1️⃣  Take a screenshot of this window (Cmd + Shift + 4 + Space) and resize to include:
	- Build Time (See ** BUILD SUCCEEDED ** [XYZ sec])
	- System Version
	- Xcode Version
	- Hardware Overview
	- Started 10:27:42
	- Ended   10:30:21
	- Date Wed Nov 3 10:30:21 CST 2021

2️⃣  Share your results at https://github.com/devMEremenko/XcodeBenchmark