Switch components support RTL

[cbbfcd]

1、ConfigProvider supports configuring the direction property.
2、Switch components support RTL

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (abef05c) 92.10% compared to head (a7448d0) 92.26%.
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6449      +/-   ##
==========================================
+ Coverage   92.10%   92.26%   +0.16%     
==========================================
  Files         316      316              
  Lines        6861     6882      +21     
  Branches     1719     1729      +10     
==========================================
+ Hits         6319     6350      +31     
+ Misses        504      495       -9     
+ Partials       38       37       -1     

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[github-actions]

PR preview has been successfully built and deployed to https://antd-mobile-preview-pr-6449.surge.sh

[cbbfcd]

@zombieJ @1587315093 review pls~

[afc163]

[cbbfcd]