refactor(bar): 条形图重构，不需要反转数据 调整下坐标系即可

[visiky]

• 需要 G2 层支持对 scrollbar 反转 feat(scrollbar): 滚动条纵向在 reflectY 下的数据问题 G2#3678

PR includes

• fixed > 条形图缩略轴slider文案被反转了 #2868
• add / modify test cases
• documents, demos

Screenshot

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[github-actions]

🎊 PR Preview b11a17a has been successfully built and deployed to https://antvis-G2Plot-preview-pr-2914.surge.sh?type=diff&date=2021-11-04

🕐 Build time: 132.989s

_{🤖 By surge-preview}

[coveralls]

Pull Request Test Coverage Report for Build 1341316754

• 24 of 24 (100.0%) changed or added relevant lines in 2 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.004%) to 95.633%

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Files with Coverage Reduction	New Missed Lines	%
src/plots/box/adaptor.ts	2	94.74%

Totals
Change from base Build 1327649246:	-0.004%
Covered Lines:	6843
Relevant Lines:	6965

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💛 - Coveralls

[visiky]

breaking change 的改造，先不发布