* Button: add circle attribute

* test: modify button round

* Button: update docs for round & circle

* Button: fix disabled docs

* Button: fix button margin

* Button: fix button margin

* MessageBox: should allow showInput when message is empty

* MessageBox: no confirm when inputType === 'textarea'

* MessageBox: hide status when message is empty

which should be indexes of the sub-menu

* Chore: complete the method declarations specified in the document

* Fix: fix a misspell mistake

* ColorPicker: add predefine colors(#8702)

* Add selected state of predefine color and test cases

* Fix the bugs mentioned in review

inputType is added in source code, but not for typescript file