feat(example): Add a reference to the extension library on x86_64 Mac platforms (#16)

Author: usagi-flow

examples/dodge-the-creeps/godot/DodgeTheCreeps.gdextension

@@ -3,4 +3,5 @@ entry_symbol = "gdextension_rust_init"
 
 [libraries]
 linux.64 = "res://../../../target/debug/libdodge_the_creeps.so"
+macos.64 = "res://../../../target/debug/libdodge_the_creeps.dylib"
 windows.64 = "res://../../../target/debug/dodge_the_creeps.dll"