define "webgl" compilation variable to fixe blackscreen webgl issue #1074
define "webgl" compilation variable to fixe blackscreen webgl issue #1074

openfl/openfl,openfl/openfl,Gama11/openfl,Gama11/openfl,openfl/openfl,Gama11/openfl,NenadBojkovski/openfl,NenadBojkovski/openfl,Gama11/openfl