rewrite kms with prost

[litongxin1991]

Description

Rewrite kms with prost:

1. support both AEAD and ProtectedFs
2. generate service trait and client automatically from proto file. Prior crate KMS client is now removed.
3. compatible with current RPC framework. Passed all the tests.

Proto file: mesatee_services/kms/proto/src/kms.proto
Generated file: mesatee_services/kms/proto/src/prost_generated/kms_proto.rs

API Document will be updated later.

Type of change (select applied and DELETE the others)

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

CI. http://ci.mesalock-linux.org/litongxin1991/incubator-mesatee/21

Checklist (check ALL before submitting PR, even not applicable)

• Fork the repo and create your branch from master.
• If you've added code that should be tested, add tests.
• If you've changed APIs, update the documentation.
• Ensure the tests pass (see CI results).
• Make sure your code lints/format.

[dingelish]

Just a note: the revelent PR on prost is https://github.com/danburkert/prost/pull/246 . Once it's merged, I'll upgrade the forked prost.

[litongxin1991]

lasted CI: https://ci.mesalock-linux.org/litongxin1991/incubator-mesatee/26/1/5

[mssun]

Can we use raw string literal but not escape characters?

Refer to: https://rahul-thakoor.github.io/rust-raw-string-literals/

[litongxin1991]

Can we use raw string literal but not escape characters?

Refer to: https://rahul-thakoor.github.io/rust-raw-string-literals/

Do you mean escape characters in prost_build_genreator.rs, like impl {} {{?

Escape characters are still needed when we use raw strings, because the escape characters are caused by format!

[mssun]

Can we use raw string literal but not escape characters?
Refer to: https://rahul-thakoor.github.io/rust-raw-string-literals/

Do you mean escape characters in prost_build_genreator.rs, like impl {} {{?

Escape characters are still needed when we use raw strings, because the escape characters are caused by format!

Ok, I understand. Thanks for the explanation.

[litongxin1991]

Can we use raw string literal but not escape characters?
Refer to: https://rahul-thakoor.github.io/rust-raw-string-literals/

Do you mean escape characters in prost_build_genreator.rs, like impl {} {{?
Escape characters are still needed when we use raw strings, because the escape characters are caused by format!

Ok, I understand. Thanks for the explanation.

In prost_build_generator.rs, \" and \n are used. I will use the raw string to avoid these characters. Thanks for your advice.

[mssun]

buf.push_str(" }\n"); => buf.push_str(" }");

[mssun]

I'm ok with the PR. Thanks!

[mssun]

Merged. Thank you!