Improve width() and clip() with kitty Text Sizing Protocol

[jquast]

• Improved: wcwidth.width() and wcwidth.clip() now supports text sequences using kitty's text sizing protocol (OSC 66)
  

Example WIP in downstream blessed project tested successfully, used TextSizing() to construct varying fractional sizes, and clip() to select a visible range (screen width),

https://www.jeffquast.com/kitty-text-sizing.mp4

kitty-text-sizing-.2.mp4

[codspeed-hq]

Merging this PR will not alter performance

✅ 86 untouched benchmarks
🆕 2 new benchmarks

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
🆕	test_clip_osc66	N/A	195.6 µs	N/A
🆕	test_width_osc66	N/A	96.4 µs	N/A

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_{Comparing jq/text-sizing-protocol (1511cc5) with master (e5a5f66)}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (28a39d9) to head (1511cc5).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##            master      #213    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files           15        23     +8     
  Lines         1030      1525   +495     
  Branches       263       365   +102     
==========================================
+ Hits          1030      1525   +495     

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