Add salesforce cli as a tool (#442)

Author: pat-trunk-io

tools/sfdx/plugin.yaml

@@ -0,0 +1,12 @@
+version: 0.1
+tools:
+  definitions:
+    - name: sfdx
+      runtime: node
+      package: "@salesforce/cli"
+      known_good_version: 2.0.1
+      shims:
+        - name: sfdx
+          target: sfdx
+        - name: sf
+          target: sf

tools/sfdx/sfdx.test.ts

@@ -0,0 +1,16 @@
+import { makeToolTestConfig, toolTest } from "tests";
+
+toolTest({
+  toolName: "sfdx",
+  toolVersion: "2.0.1",
+  testConfigs: [
+    makeToolTestConfig({
+      command: ["sfdx", "--version"],
+      expectedOut: "2.0.1",
+    }),
+    makeToolTestConfig({
+      command: ["sf", "--version"],
+      expectedOut: "2.0.1",
+    }),
+  ],
+});