feat: add Rust client for Hermes price service

.github/workflows/ci-hermes-client-rust.yml

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+name: Check Hermes Rust Client
+
+on:
+  pull_request:
+    paths:
+      - .github/workflows/ci-hermes-client-rust.yml
+      - apps/hermes/client/rust/**
+  push:
+    branches: [main]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: apps/hermes/client/rust
+    steps:
+      - uses: actions/checkout@v2
+      - uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: "apps/hermes/client/rust -> target"
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: 1.82.0
+          components: rustfmt, clippy
+          override: true
+      - name: Format check
+        run: cargo fmt --all -- --check
+        if: success() || failure()
+      - name: Clippy check
+        run: cargo clippy --tests -- --deny warnings
+        if: success() || failure()
+      - name: Build check
+        run: cargo build
+        if: success() || failure()
+      - name: Run tests
+        run: cargo test
+        if: success() || failure()
+      - name: Build examples
+        run: cargo build --examples
+        if: success() || failure()

.github/workflows/publish-rust-hermes-client.yml

@@ -0,0 +1,18 @@
+name: Publish Rust package hermes-client to crates.io
+
+on:
+  push:
+    tags:
+      - hermes-client-rust-v*
+jobs:
+  publish-hermes-client:
+    name: Publish Rust package hermes-client to crates.io
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - run: cargo publish --token ${CARGO_REGISTRY_TOKEN}
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        working-directory: "apps/hermes/client/rust"

apps/hermes/client/rust/.openapi-generator-ignore

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+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md
+
+# Exclude the autogenerated SSE client implementation
+# This will be replaced with a custom implementation that properly handles streaming
+src/apis/rest_api.rs:price_stream_sse_handler
+
+# Exclude examples directory to prevent overwriting custom examples
+examples/

apps/hermes/client/rust/.openapi-generator/FILES

@@ -0,0 +1,46 @@
+.gitignore
+.openapi-generator-ignore
+.travis.yml
+Cargo.toml
+README.md
+docs/AssetType.md
+docs/BinaryUpdate.md
+docs/EncodingType.md
+docs/GetVaaCcipResponse.md
+docs/GetVaaResponse.md
+docs/LatestPublisherStakeCapsUpdateDataResponse.md
+docs/ParsedPriceFeedTwap.md
+docs/ParsedPriceUpdate.md
+docs/ParsedPublisherStakeCap.md
+docs/ParsedPublisherStakeCapsUpdate.md
+docs/PriceFeedMetadata.md
+docs/PriceUpdate.md
+docs/RestApi.md
+docs/RpcPrice.md
+docs/RpcPriceFeed.md
+docs/RpcPriceFeedMetadata.md
+docs/RpcPriceFeedMetadataV2.md
+docs/TwapsResponse.md
+git_push.sh
+src/apis/configuration.rs
+src/apis/mod.rs
+src/apis/rest_api.rs
+src/lib.rs
+src/models/asset_type.rs
+src/models/binary_update.rs
+src/models/encoding_type.rs
+src/models/get_vaa_ccip_response.rs
+src/models/get_vaa_response.rs
+src/models/latest_publisher_stake_caps_update_data_response.rs
+src/models/mod.rs
+src/models/parsed_price_feed_twap.rs
+src/models/parsed_price_update.rs
+src/models/parsed_publisher_stake_cap.rs
+src/models/parsed_publisher_stake_caps_update.rs
+src/models/price_feed_metadata.rs
+src/models/price_update.rs
+src/models/rpc_price.rs
+src/models/rpc_price_feed.rs
+src/models/rpc_price_feed_metadata.rs
+src/models/rpc_price_feed_metadata_v2.rs
+src/models/twaps_response.rs

apps/hermes/client/rust/.openapi-generator/VERSION

@@ -0,0 +1 @@
+7.13.0