AO maps can be exported directly in the GLTF file trough blender export. Light maps are no supported in GLTF so after importing your GLTF you will need to add the light maps manually to each material.
Light maps use a second UV slot, you will need to generate it in blender too.
Don’t forget to flip the lightmap with lightMap.flipY or manually flip vertically the texture/image in photshop or similar (inconsistency between how gltf and threejs handle UVs)