feat: add invoke write method to proxy (#3667)

Description
---
Adds the ability for a validator node to proxy `invoke_write_method` requests from GRPC and send them to a node in the committee for that asset.

Motivation and Context
---
This allows a user using a local validator node to invoke methods on any asset that is registered on the base layer as long as the committee is still running and connectable.

.circleci/config.yml

@@ -34,6 +34,9 @@ commands:
       - run:
           name: Build stratum_transcoder
           command: cargo build --release --bin tari_stratum_transcoder
+      - run:
+          name: Build validator node
+          command: cargo build --release --bin tari_validator_node
       - run:
           name: Run cucumber scenarios
           no_output_timeout: 20m
@@ -82,6 +85,9 @@ commands:
       - run:
           name: Build stratum_transcoder
           command: cargo build --release --bin tari_stratum_transcoder
+      - run:
+          name: Build validator node
+          command: cargo build --release --bin tari_validator_node
       # Below step requires NodeJS v12 to run correctly, see explanation in WalletFFI.feature
       - run:
           name: Run FFI wallet library cucumber scenarios

.github/workflows/ci.yml

@@ -4,9 +4,11 @@ on:
       - development
       - main
       - ci-*
-      - validator-node
   pull_request:
-    types: [opened, reopened]
+    types:
+      - opened
+      - reopened
+      - synchronize
 
 name: CI
 
@@ -16,25 +18,33 @@ env:
   toolchain: nightly-2021-09-18
 
 jobs:
-  fmt:
-    name: fmt
+  clippy:
+    name: clippy
     runs-on: ubuntu-18.04
     steps:
       - name: ubuntu dependencies
         run: |
           sudo apt-get update && \
           sudo apt-get -y install \
-            libssl-dev \
-            openssl \
-            libsqlite3-dev \
-            pkg-config \
-            git \
-            cmake \
-            zip \
-            libc++-dev \
-            libc++abi-dev \
-            libprotobuf-dev \
-            protobuf-compiler
+          libssl-dev \
+          openssl \
+          libsqlite3-dev \
+          pkg-config \
+          git \
+          cmake \
+          zip \
+          libc++-dev \
+          libc++abi-dev \
+          libprotobuf-dev \
+          protobuf-compiler \
+          libwebkit2gtk-4.0-dev \
+          build-essential \
+          curl \
+          wget \
+          libgtk-3-dev \
+          libappindicator3-dev \
+          patchelf \
+          librsvg2-dev
       - name: checkout
         uses: actions/checkout@v2
       - name: toolchain
@@ -69,10 +79,18 @@ jobs:
         run: |
           sudo apt-get update && \
           sudo apt-get -y install \
-            build-essential \
-            libgtk-3-dev \
-            libwebkit2gtk-4.0-dev \
-            libsoup2.4-dev
+          build-essential \
+          libgtk-3-dev \
+          libwebkit2gtk-4.0-dev \
+          libsoup2.4-dev \
+          curl \
+          wget \
+          libgtk-3-dev \
+          libappindicator3-dev \
+          patchelf \
+          librsvg2-dev \
+          libprotobuf-dev \
+          protobuf-compiler
       - name: checkout
         uses: actions/checkout@v2
       - name: Caching
@@ -83,22 +101,12 @@ jobs:
             ~/.cargo/git
             target
           key: ${{ runner.os }}-${{ runner.cpu-model }}-${{ env.toolchain }}-${{ hashFiles('**/Cargo.lock') }}
-      - name: ubuntu dependencies
-        run: |
-          sudo apt-get update && \
-          sudo apt-get -y install \
-            build-essential \
-            libgtk-3-dev \
-            libwebkit2gtk-4.0-dev \
-            libsoup2.4-dev
-
       - name: toolchain
         uses: actions-rs/toolchain@v1
         with:
           toolchain: ${{ env.toolchain }}
           components: clippy, rustfmt
           override: true
-
       - name: cargo test
         uses: actions-rs/cargo@v1
         with: