[attributedlabel] Implement intrinsicContentSize.
[attributedlabel] Implement intrinsicContentSize.

Closes #432.

compositeprimes/nimbus,andaluz/nimbus,SuPair/nimbus,kisekied/nimbus,zilaiyedaren/nimbus,bangquangvn/nimbus,cnbin/nimbus,JyHu/nimbus,zaichang/nimbus,bogardon/nimbus,zilaiyedaren/nimbus,bogardon/nimbus,jverkoey/nimbus,SuPair/nimbus,dieface/nimbus,dieface/nimbus,DreamHill/nimbus,treejames/nimbus,hanangellove/nimbus,kviksilver/nimbus,dmishe/nimbus,jverkoey/nimbus,michaelShab/nimbus,zilaiyedaren/nimbus,marcobgoogle/nimbus,DreamHill/nimbus,LcongGitHub/nimbus,zaichang/nimbus,DreamHill/nimbus,kviksilver/nimbus,Arcank/nimbus,Arcank/nimbus,mohsinalimat/nimbus,compositeprimes/nimbus,chanffdavid/nimbus,hanangellove/nimbus,bangquangvn/nimbus,zaichang/nimbus,mohsinalimat/nimbus,weiyanwu1984/nimbus,bogardon/nimbus,marcobgoogle/nimbus,weiyanwu1984/nimbus,bogardon/nimbus,Guokr1991/nimbus,andaluz/nimbus,bangquangvn/nimbus,tranhieutt/nimbus,kisekied/nimbus,panume/nimbus,dachaoisme/nimbus,quyixia/nimbus,quyixia/nimbus,marcobgoogle/nimbus,compositeprimes/nimbus,WeeTom/nimbus,JyHu/nimbus,dmishe/nimbus,veue/nimbus,michaelShab/nimbus,cnbin/nimbus,weiyanwu1984/nimbus,tranhieutt/nimbus,LcongGitHub/nimbus,Guokr1991/nimbus,Arcank/nimbus,WeeTom/nimbus,andaluz/nimbus,zaichang/nimbus,xiaohongjun0509/nimbus,Guokr1991/nimbus,dachaoisme/nimbus,hanangellove/nimbus,WeeTom/nimbus,bangquangvn/nimbus,LcongGitHub/nimbus,panume/nimbus,bangquangvn/nimbus,zaichang/nimbus,jverkoey/nimbus,tranhieutt/nimbus,veue/nimbus,treejames/nimbus,hanangellove/nimbus,Guokr1991/nimbus,JyHu/nimbus,treejames/nimbus,mohsinalimat/nimbus,liuwu/nimbus,DreamHill/nimbus,liuwu/nimbus,quyixia/nimbus,weiyanwu1984/nimbus,LcongGitHub/nimbus,ycaihua/nimbus,SuPair/nimbus,JyHu/nimbus,dmishe/nimbus,treejames/nimbus,michaelShab/nimbus,cnbin/nimbus,kviksilver/nimbus,zilaiyedaren/nimbus,Arcank/nimbus,bogardon/nimbus,weiyanwu1984/nimbus,kisekied/nimbus,kviksilver/nimbus,WeeTom/nimbus,JyHu/nimbus,dmishe/nimbus,ycaihua/nimbus,quyixia/nimbus,Arcank/nimbus,LcongGitHub/nimbus,bangquangvn/nimbus,veue/nimbus,xiaohongjun0509/nimbus,hanangellove/nimbus,jverkoey/nimbus,cnbin/nimbus,kisekied/nimbus,cnbin/nimbus,panume/nimbus,jverkoey/nimbus,marcobgoogle/nimbus,veue/nimbus,dachaoisme/nimbus,bogardon/nimbus,ycaihua/nimbus,xiaohongjun0509/nimbus,kisekied/nimbus,andaluz/nimbus,SuPair/nimbus,treejames/nimbus,veue/nimbus,panume/nimbus,liuwu/nimbus,hanangellove/nimbus,Guokr1991/nimbus,zilaiyedaren/nimbus,marcobgoogle/nimbus,WeeTom/nimbus,DreamHill/nimbus,quyixia/nimbus,kviksilver/nimbus,tranhieutt/nimbus,Arcank/nimbus,mohsinalimat/nimbus,ycaihua/nimbus,compositeprimes/nimbus,dieface/nimbus,jverkoey/nimbus,panume/nimbus,LcongGitHub/nimbus,cnbin/nimbus,zaichang/nimbus,SuPair/nimbus,kviksilver/nimbus,chanffdavid/nimbus,tranhieutt/nimbus,dieface/nimbus,dieface/nimbus,chanffdavid/nimbus,dachaoisme/nimbus,treejames/nimbus,quyixia/nimbus,liuwu/nimbus,compositeprimes/nimbus,dachaoisme/nimbus,marcobgoogle/nimbus,liuwu/nimbus,JyHu/nimbus,michaelShab/nimbus,michaelShab/nimbus,dmishe/nimbus,weiyanwu1984/nimbus,ycaihua/nimbus,liuwu/nimbus,dieface/nimbus,jverkoey/nimbus,xiaohongjun0509/nimbus,xiaohongjun0509/nimbus,panume/nimbus,andaluz/nimbus,dachaoisme/nimbus,Arcank/nimbus,compositeprimes/nimbus,SuPair/nimbus,chanffdavid/nimbus,quyixia/nimbus,bogardon/nimbus,tranhieutt/nimbus,chanffdavid/nimbus,xiaohongjun0509/nimbus,compositeprimes/nimbus,DreamHill/nimbus,zilaiyedaren/nimbus,marcobgoogle/nimbus,ycaihua/nimbus,dmishe/nimbus,andaluz/nimbus,mohsinalimat/nimbus,JyHu/nimbus,michaelShab/nimbus,chanffdavid/nimbus,mohsinalimat/nimbus,kisekied/nimbus,WeeTom/nimbus,Guokr1991/nimbus