Function prepare_mesh_bind_groups

pub fn prepare_mesh_bind_groups(
    commands: Commands<'_, '_>,
    meshes: Res<'_, RenderAssets<RenderMesh>>,
    mesh_pipeline: Res<'_, MeshPipeline>,
    render_device: Res<'_, RenderDevice>,
    cpu_batched_instance_buffer: Option<Res<'_, BatchedInstanceBuffer<MeshUniform>>>,
    gpu_batched_instance_buffers: Option<Res<'_, BatchedInstanceBuffers<MeshUniform, MeshInputUniform>>>,
    skins_uniform: Res<'_, SkinUniforms>,
    weights_uniform: Res<'_, MorphUniforms>,
    render_lightmaps: ResMut<'_, RenderLightmaps>,
)

Creates the per-mesh bind groups for each type of mesh and each phase.