making sure environment-modules are installed

Former-commit-id: 70a1b9ed

roles/enable_modules/tasks/main.yml

 ---
 
+- name: make sure environment modules are installed
+  package:
+    name: environment-modules
+    state: installed
+  become: true
+
 - name: template lmod bash
-  template: src=lmod.sh.j2 dest=/etc/profile.d/lmod.sh 
+  template: src=lmod.sh.j2 dest=/etc/profile.d/lmod.sh
   become: true
   become_user: root
   when: default_modules == "lmod"