FBXLoader: Use console.error instead of Error when Inflate is missing.

examples/js/loaders/FBXLoader.js

@@ -3121,7 +3121,7 @@
 
 					if ( window.Zlib === undefined ) {
 
-						throw new Error( 'THREE.FBXLoader: External library Inflate.min.js required, obtain or import from https://github.com/imaya/zlib.js' );
+						console.error( 'THREE.FBXLoader: External library Inflate.min.js required, obtain or import from https://github.com/imaya/zlib.js' );
 
 					}