Missing test for excluded fields

[phil-wpks]

Hi @jorostoyanov ,

Thanks for the plugin !

I tried filtering some fields and realised the following code seems to be missing in order to get it working :
carbon-fields-yoast.js:line 119

		
$.each(fields, function (index, field) {
			// we can skip complex fields, as their children are
			// already present in the main fields array
			if (field.type === 'complex') {
				return;
			}
			// This test seems to be missing?
			if ( _self.shouldSkipField(field) ) {
				return;
			}

			fieldsContentParts.push(_self.getFieldContent(field));
		});

Could you confirm and add it to the repo ?

Many thanks,

[phil-wpks]

@htmlburger-git