Add ccRandom.h
CCRANDOM macro use ccRandom
Fix typo
fix getEngine
Fix xcode warning that cause `getEngine` inline expansion
fix sendPrompt()

a extra '\0' will be sent when sizeof() is used
fix pageView touch location
remove cascade color for CorlorFrame
setKeepScreenOn method
Label performance problem
Merge pull request #7824 from newnon/v3_setKeepScreenOn

setKeepScreenOn method
[ci skip]
[ci skip]
Merge branch 'ccRandom' of https://github.com/gin0606/cocos2d-x into ccRandom

Conflicts:
	build/cocos2d_libs.xcodeproj/project.pbxproj
Merge pull request #7818 from andyque/fixPageViewTouchBeganPositionIssue

fix pageView touch location
Merge pull request #7825 from 2youyouo2/v3

remove cascade color for CorlorFrame
Merge pull request #7816 from xiangxw/fix_sendPrompt

fix sendPrompt()
[ci skip]
Merge pull request #7823 from newnon/v3_Label_fix

Label performance problem
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