Update module-nft to setup proxy account

[xlc]

After this is available paritytech/substrate#7139

Acala/modules/nft/src/lib.rs

Lines 173 to 175 in 0c630d1

	// Depends on https://github.com/paritytech/substrate/issues/7139
	// For now, use origin as owner and skip the proxy part
	// pallet_proxy::Module<T>::add_proxy(owner, origin, Default::default(), 0)

Acala/modules/nft/src/lib.rs

Lines 335 to 337 in 0c630d1

	// Skip two steps until pallet_proxy is accessable
	// pallet_proxy::Module<T>::remove_proxies(owner)
	// transfer all free from origin to dest