feat(olHelpers): add ability to use 'projection' and 'tileUrlFunction' options with XYZ sources
feat(olHelpers): add ability to use 'projection' and 'tileUrlFunction' options with XYZ sources

birdlifedk/angular-openlayers-directive,mikostn/angular-openlayers-directive,ageblade/angular-openlayers-directive,milafrerichs/angular-openlayers-directive,claycephas/angular-openlayers-directive,StevenHeinrich/angular-openlayers-directive,chambleton/angular-openlayers-directive,TeChn4K/angular-openlayers-directive,gaf-ag/angular-openlayers-directive,mikostn/angular-openlayers-directive,tombatossals/angular-openlayers-directive,polesapart/angular-openlayers-directive