count_down_timer 1.0.1

A new Flutter countdown project that can be used to send SMS verification code scenarios

• TODO: Describe initial release. TODO: Describe initial release. [0.0.1] - TODO: Add release date.
  [0.0.2] - TODO: Add release date.
  [0.0.3] - TODO: Add release date.
  add property String type: verifyStr
  [0.0.4] - TODO: Add release date.
  [1.0.1]
  - TODO: 1.check phone number.only start timer when phone number is not empty
  2.add property:phone,widgetWidth, decoration,padding.