Add a benchmark for property access using dynamic member lookup

[kateinoigakukun]

To see how much #253 will improve performance

[github-actions]

Time Change: +2,541ms (21%) 🚨

Total Time: 11,680ms

Test name	Duration	Change
Serialization/JavaScript function call through Wasm import	21ms	+2ms (7%)	🔍
Serialization/JavaScript function call from Swift	99ms	+5ms (5%)	🔍
Serialization/Swift Int to JavaScript with assignment	339ms	+24ms (7%)	🔍
Serialization/Swift Int to JavaScript with call	967ms	+50ms (5%)	🔍
Serialization/JavaScript Number to Swift Int	313ms	+18ms (5%)	🔍
Serialization/Swift String to JavaScript with call	1,046ms	+64ms (6%)	🔍
Serialization/JavaScript String to Swift String	3,790ms	+268ms (7%)	🔍
Property access/Dynamic member lookup	2,014ms	+2,014ms (100%)	🆘

View Unchanged

Test name	Duration	Change
Serialization/JavaScript function call through Wasm import with int	14ms	-0ms
Serialization/Swift String to JavaScript with assignment	395ms	+15ms (3%)
Object heap/Increment and decrement RC	2,668ms	+80ms (3%)

View Baselines

Test name	Duration
Serialization/Call JavaScript function directly	3ms
Serialization/Assign JavaScript number directly	3ms
Serialization/Call with JavaScript number directly	3ms
Serialization/Write JavaScript string directly	2ms
Serialization/Call with JavaScript string directly	3ms