feat(blobby): Adds a new full example for the blobstore contract

I tried to exercise all the functionality locally as well as some of
the error cases. The goal here was to have an actor that was as "real"
as possible (i.e. error handling, best code practices, etc.)

Signed-off-by: Taylor Thomas <[email protected]>

.github/workflows/blobby.yml

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+name: Blobby
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "actor/blobby/**"
+    tags:
+      - "blobby-v*"
+  pull_request:
+    branches: [main]
+    paths:
+      - "actor/blobby/**"
+
+env:
+  CARGO_TERM_COLOR: always
+  working-directory: ./actor/blobby
+  WASH_ISSUER_KEY: ${{ secrets.WASMCLOUD_ACCOUNT_OFFICIAL }}
+  WASH_SUBJECT_KEY: ${{ secrets.WASMCLOUD_BLOBBY }}
+
+jobs:
+  rust_check:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      # If your integration tests require nats or redis, run them here
+      - name: Add wasm32-unknown-unknown
+        run: rustup target add wasm32-unknown-unknown
+      - id: rust-check-action
+        uses: wasmcloud/common-actions/rust-check@main
+        with:
+          working-directory: ${{ env.working-directory }}
+          # The `--doc` is required for wasm, as cargo cannot execute wasm tests by default
+          test-options: "--verbose --doc"
+
+  build_artifact:
+    needs: rust_check
+    if: startswith(github.ref, 'refs/tags/') # Only run on tag push
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: wasmcloud/common-actions/install-wash@main
+
+      - name: Add wasm32-unknown-unknown
+        run: rustup target add wasm32-unknown-unknown
+
+      - name: Build wasmcloud actor
+        run: wash build
+        working-directory: ${{ env.working-directory }}
+
+      - name: Upload signed actor to GH Actions
+        uses: actions/upload-artifact@v2
+        with:
+          name: wasmcloud-actor
+          path: ${{ env.working-directory }}/build/*_s.wasm
+
+  github_release:
+    if: startswith(github.ref, 'refs/tags/') # Only run on tag push
+    needs: build_artifact
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Download signed actor
+        uses: actions/download-artifact@v2
+        with:
+          name: wasmcloud-actor
+          path: ${{ env.working-directory }}/build
+
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: ${{ env.working-directory }}/build/*_s.wasm
+          token: ${{ secrets.GITHUB_TOKEN }}
+          prerelease: true
+          draft: false
+
+  artifact_release:
+    needs: build_artifact
+    if: startswith(github.ref, 'refs/tags/') # Only run on tag push
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Download signed actor
+        uses: actions/download-artifact@v2
+        with:
+          name: wasmcloud-actor
+          path: ${{ env.working-directory }}/build
+
+      - name: Determine artifact metadata
+        run: |
+          echo "oci-repository=$(cargo metadata --no-deps --format-version 1 | jq -r '.packages[].name')" >> $GITHUB_ENV
+          echo "oci-version=$(cargo metadata --no-deps --format-version 1 | jq -r '.packages[].version')" >> $GITHUB_ENV
+        working-directory: ${{ env.working-directory }}
+
+      - name: Push actor to AzureCR
+        uses: wasmcloud/common-actions/oci-artifact-release@main
+        with:
+          artifact-path: ${{ env.working-directory }}/build/blobby_s.wasm
+          oci-url: ${{ secrets.AZURECR_PUSH_URL }}
+          oci-repository: ${{ env.oci-repository }}
+          oci-version: ${{ env.oci-version }}
+          oci-username: ${{ secrets.AZURECR_PUSH_USER }}
+          oci-password: ${{ secrets.AZURECR_PUSH_PASSWORD }}

actor/blobby/.cargo/config.toml

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+[build]
+target = "wasm32-unknown-unknown"

actor/blobby/.gitignore

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+# This file lists build byproducts, 
+# IDE-specific files (unless shared by your team)
+
+
+## Build
+/build
+/dist/
+/target
+**target
+
+## File system
+.DS_Store
+desktop.ini
+
+## Editor
+*.swp
+*.swo
+Session.vim
+.cproject
+.idea
+*.iml
+.vscode
+.project
+.favorites.json
+.settings/
+
+## Temporary files
+*~
+\#*
+\#*\#
+.#*
+
+## Python
+__pycache__/
+*.py[cod]
+*$py.class
+
+## Node
+**node_modules
+**package-lock.json
+