[new feature]: tabs component add swipeThreshold prop

[cookfront]

Fixes #203

Changes you made in this pull request:

• tabs component add swipeThreshold prop, when tabs length greater then swipeThreshold， then tabs support swipe

[codecov-io]

Codecov Report

Merging #206 into dev will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##              dev     #206   +/-   ##
=======================================
  Coverage   91.65%   91.65%           
=======================================
  Files          79       79           
  Lines        1690     1690           
  Branches      231      231           
=======================================
  Hits         1549     1549           
  Misses         65       65           
  Partials       76       76

Impacted Files	Coverage Δ
packages/tabs/index.vue	93.75% <100%> (ø)	⬆️

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