Function ergo::ergo_lib_ergo_tree_to_bytes

#[no_mangle]
pub unsafe extern "C" fn ergo_lib_ergo_tree_to_bytes(
    ergo_tree_ptr: ConstErgoTreePtr,
    output: *mut u8
) -> ErrorPtr

Convert to serialized bytes. Key assumption: enough memory has been allocated at the address pointed-to by output. Use ergo_lib_ergo_tree_bytes_len to determine the length of the byte array.