Add Github workflow

Author: ecmendenhall

.github/workflows/geth-tests.yml

@@ -0,0 +1,16 @@
+name: Geth Tests
+
+on: push
+
+jobs:
+  run-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+      - name: Set up Golang
+        uses: actions/setup-go@v3
+        with:
+          go-version: ">=1.17.0"
+      - name: Run geth tests
+        run: go test `go list ./... | grep -v mobile`