Add support for maven/gradle versions

- Essentially use same concepts as jdk install to switch
  maven and gradle versions if those are defined with config.
- Bump to tool-cache 1.3.0 as 1.0.0 tries to use
  node_modules/@actions/tool-cache/scripts/externals/unzip which doesn't have
  execute flag so you'd get `Permission denied`
- `extractZipNix` in toolkit no longer support relative path so needs to
  resolve absolute path before passing file to these methods.
- Commit has my local build for `index.js` which probably should get
  recreated but makes it easier to test this from a PR branch.
- Fixes #40

src/setup-java.ts

@@ -1,5 +1,7 @@
 import * as core from '@actions/core';
 import * as installer from './installer';
+import * as mavenInstaller from './maven-installer';
+import * as gradleInstaller from './gradle-installer';
 import * as auth from './auth';
 import * as path from 'path';
 
@@ -15,6 +17,19 @@ async function run() {
 
     await installer.getJava(version, arch, jdkFile, javaPackage);
 
+    const mavenVersion = core.getInput('maven-version', {required: false});
+    const mavenFile = core.getInput('maven-file', {required: false}) || '';
+    const mavenMirror = core.getInput('maven-mirror', {required: false});
+    if (mavenVersion) {
+      await mavenInstaller.getMaven(mavenVersion, mavenFile, mavenMirror);
+    }
+
+    const gradleVersion = core.getInput('gradle-version', {required: false});
+    const gradleFile = core.getInput('gradle-file', {required: false}) || '';
+    if (gradleVersion) {
+      await gradleInstaller.getGradle(gradleVersion, gradleFile);
+    }
+
     const matchersPath = path.join(__dirname, '..', '.github');
     console.log(`##[add-matcher]${path.join(matchersPath, 'java.json')}`);