Update XCGConsoleLogDestination for easier subclassing
Update XCGConsoleLogDestination for easier subclassing

- Moved print calls to output method.
- Added flag to turn off date formatting.

tibmeister/XCGLogger,BrianBatchelder/XCGLogger,fullstackclub/XCGLogger,mottx/XCGLogger,adonoho/XCGLogger,mattroth/XCGLogger,pollarm/XCGLogger,yjkim/XCGLogger,yjkim/XCGLogger,dougbeal/XCGLogger,tibmeister/XCGLogger,RobinChao/XCGLogger,ArthurKK/XCGLogger,foozmeat/XCGLogger,skreutzberger/XCGLogger,foozmeat/XCGLogger,mattroth/XCGLogger,pomozoff/XCGLogger,LiuDeng/XCGLogger,BrianBatchelder/XCGLogger,skreutzberger/XCGLogger,ymyzk/XCGLogger,cwoloszynski/XCGLogger,pomozoff/XCGLogger,dougbeal/XCGLogger,fullstackclub/XCGLogger,RobinChao/XCGLogger,LiuDeng/XCGLogger,msanders/XCGLogger,cwoloszynski/XCGLogger,ArthurKK/XCGLogger,fullstackclub/XCGLogger,twobitlabs/XCGLogger,LiuDeng/XCGLogger,mattroth/XCGLogger,RobinChao/XCGLogger,pollarm/XCGLogger,ymyzk/XCGLogger,adonoho/XCGLogger,ArthurKK/XCGLogger,mottx/XCGLogger,msanders/XCGLogger,DaveWoodCom/XCGLogger,DaveWoodCom/XCGLogger,twobitlabs/XCGLogger,msanders/XCGLogger,sportlabsMike/XCGLogger,foozmeat/XCGLogger,sportlabsMike/XCGLogger