feat(core): new tools scope

ts/tools.install.ts

@@ -0,0 +1,30 @@
+import plugins = require('./tools.plugins');
+import paths = require('./tools.paths');
+
+const installExec = async (packageNames: string[]) => {
+  let installString = '';
+  for (let packageName of packageNames) {
+    installString = installString + `${packageName} `;
+  }
+  await plugins.smartshell.exec(`yarn global remove ${installString}`);
+  for (let packageName of packageNames) {
+    plugins.beautylog.info(`now preparing ${packageName}`);
+    plugins.beautylog.log(`Installing ${packageName}`);
+  }
+  await plugins.smartshell.exec(`npm install -g ${installString}`);
+};
+
+let packageLibrary = plugins.smartfile.fs.toObjectSync(
+  plugins.path.join(paths.packageBase, 'package_library.json')
+);
+
+export const install = async (packageSetArg: String) => {
+  switch (packageSetArg) {
+    case 'default':
+      await installExec(packageLibrary.default);
+      break;
+    default:
+      plugins.beautylog.warn('no set has been specified');
+      break;
+  }
+};