start adding dependency checks

Author: alexravenna

src/checks.ts

@@ -0,0 +1,9 @@
+import { exec } from "@actions/exec";
+
+/**
+ * Check for necessary tools on the system:
+ * - Git
+ * - .NET CLI
+ */
+export async function dependencyChecks() : Promise<void> {
+}

src/main.ts

@@ -1,5 +1,6 @@
 import * as core from "@actions/core";
 import { cloneRepository, buildProject } from "./themeConverter";
+import { dependencyChecks } from "./checks";
 
 const WORK_DIRECTORY = "work";
 
@@ -9,6 +10,9 @@ const WORK_DIRECTORY = "work";
  */
 export async function run(): Promise<void> {
     try {
+        // Run dependency checks first
+        dependencyChecks();
+
         // Clone and build ThemeConverter program
         cloneRepository(WORK_DIRECTORY).then(() =>
             buildProject(WORK_DIRECTORY),