Cache wrapper dist, step 1

src/cache.ts

@@ -0,0 +1,11 @@
+import * as core from '@actions/core'
+
+export async function restoreCachedWrapperDist(
+    executableDirectory: string
+): Promise<void> {
+    core.saveState('GC_WRAPPER_BASE_DIR', executableDirectory)
+}
+
+export async function cacheWrapperDist(): Promise<void> {
+    core.info(`GC_WRAPPER_BASE_DIR = ${core.getState('GC_WRAPPER_BASE_DIR')}`)
+}