feat #11: release hrp cli binaries automatically with github actions

feat #20: add Makefile for running unittest and building hrp cli binary

.github/workflows/unittest.yml

@@ -0,0 +1,40 @@
+name: Run unittest with coverage
+
+on:
+  push:
+  pull_request:
+    types: [synchronize]
+  schedule:
+    - cron: "0 0 1,11,21 * *"
+
+jobs:
+  test:
+    strategy:
+      fail-fast: true
+      matrix:
+        go-version:
+          - 1.13.x
+          - 1.14.x
+          - 1.15.x
+          - 1.16.x
+          - 1.17.x
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Install Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go-version }}
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Run coverage
+        run: go test -race -coverprofile="cover.out" -covermode=atomic ./...
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v2
+        with:
+          name: hrp (HttpRunner+) # User defined upload name. Visible in Codecov UI
+          token: ${{ secrets.CODECOV_TOKEN }} # Repository upload token
+          file: ./cover.out # Path to coverage file to upload
+          flags: unittests # Flag upload to group coverage metrics
+          fail_ci_if_error: true # Specify whether or not CI build should fail if Codecov runs into an error during upload
+          verbose: true