initial gh actions

Adds basic GH Workflow that runs tests on push and pr, coverage
is disabled.

The intention is to soft switch to GH Actions by just letting them
run next to travs for a while to get a feel for things

Signed-off-by: R.I.Pienaar <rip@devco.net>

.github/workflows/go-test.yaml

@@ -0,0 +1,53 @@
+name: NATS Server Testing
+on: [push, pull_request]
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        go: [1.13, 1.14]
+
+    env:
+      GOPATH: /home/runner/work/nats-server
+      GO111MODULE: "off"
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v1
+        with:
+          path: src/github.com/nats-io/nats-server
+
+      - name: Setup Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: ${{matrix.go}}
+
+      - name: Install deps
+        shell: bash --noprofile --norc -x -eo pipefail {0}
+        run: |
+          go get github.com/nats-io/nats.go/
+          go get github.com/nats-io/nkeys
+          go get github.com/nats-io/jwt
+          go get -u honnef.co/go/tools/cmd/staticcheck
+          go get -u github.com/client9/misspell/cmd/misspell
+
+      - name: Lint
+        shell: bash --noprofile --norc -x -eo pipefail {0}
+        run: |
+          GO_LIST=$(go list ./...)
+          go build
+          $(exit $(go fmt $GO_LIST | wc -l))
+          go vet $GO_LIST
+          find . -type f -name "*.go" | grep -v "/vendor/" | xargs $GOPATH/bin/misspell -error -locale US
+          $GOPATH/bin/staticcheck $GO_LIST
+
+      - name: Run tests
+        shell: bash --noprofile --norc -x -eo pipefail {0}
+        run: |
+          set -e
+          go test -i ./...
+          go test -v -run=TestNoRace --failfast -p=1 ./...
+          # coverage via cov.sh disabled while just testing the waters
+          go test -v -race -p=1 --failfast ./...
+          set +e