Use Vec<u8> as middle man to deserialize various types

[contrun]

While developing #474, we wanted an easy way to convert the old ChannelActorState struct to a new ChannelActorState struct (if the newer struct only adds a few fields with default value or removes a few obsolete fields). We tried serde_json which does not work because json can't serialize binary data natively.

We then tried cbor. To our surprise, current code can't even deserialize the serialized result of a ChannelActorState. This is shown in the commit 6f9d1bffdb5a7b41cbc127835c194cb44c37dcb4. The test test_serde_channel_actor_state_ciborium will fail with error Semantic(None, "invalid type: byte array, expected a borrowed byte array") (see github actions log).

After some investigation, I found we need to deserialize the data to Vec<u8> instead of &[u8]. I don't know why bincode deserializtion succeeded. But there are many similar issues on github (e.g. jonasbb/serde_with#372 (comment) and serde-rs/json#530 ). With the change in commit 99298012ef362ccfd0c9fa8832196cb09daad29e, I can successfully deserialize data with cbor.

I have tried the patch in this PR to successfully convert from one ChannelActorState to another ChannelActorState with some additional Option fields (code: chengyukang:refactor-migration-with-crate...contrun:fiber:refactor-migration-with-crate). I didn't add the simpler approach to #474 because we need to back port this PR to fiber v0.2.0, v0.2.1 and v0.3.0-rc1. There is also one field in v0.3.0-rc1 local_tlc_info which has no default value.