Add cache for project .gradle dir

- For now, this is limited to configuration-cache directory

src/caches.ts

@@ -0,0 +1,19 @@
+import * as cacheGradleUserHome from './cache-gradle-user-home'
+import * as cacheProjectDotGradle from './cache-project-dot-gradle'
+import * as core from '@actions/core'
+
+const BUILD_ROOT_DIR = 'BUILD_ROOT_DIR'
+
+export async function restore(buildRootDirectory: string): Promise<void> {
+    core.saveState(BUILD_ROOT_DIR, buildRootDirectory)
+
+    await cacheGradleUserHome.restore()
+    await cacheProjectDotGradle.restore(buildRootDirectory)
+}
+
+export async function save(): Promise<void> {
+    const buildRootDirectory = core.getState(BUILD_ROOT_DIR)
+
+    await cacheGradleUserHome.save()
+    await cacheProjectDotGradle.save(buildRootDirectory)
+}