github actions: add type and cli checks

.github/workflows/joystream-cli.yml

@@ -0,0 +1,21 @@
+name: joystream-cli
+on: [pull_request, push]
+
+jobs:
+  types_build_ubuntu:
+    name: Ubuntu Build
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - name: build
+      run: |
+        yarn install --frozen-lockfile
+        yarn workspace @joystream/types build
+        yarn workspace joystream-cli build

.github/workflows/types.yml

@@ -0,0 +1,20 @@
+name: "@joystream/types"
+on: [pull_request, push]
+
+jobs:
+  types_build_ubuntu:
+    name: Ubuntu Build
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - name: build
+      run: |
+        yarn install --frozen-lockfile
+        yarn workspace @joystream/types build