Combine playbooks for indiviual hosts into one playbook

This makes a full deployment of all hosts easier and parallelises
execution of roles, which are used for multiple hosts.
You can still easily deploy only a subset of hosts using the -l flag for
ansible-playbook.

playbooks/engelsystem_specific_pre_tasks.yaml

@@ -0,0 +1,23 @@
+---
+- name: engelsystem on engelsystem.z9 specific pre tasks
+  hosts: engelsystem
+  pre_tasks:
+    - name: Install git
+      ansible.builtin.apt:
+        name: git
+        state: present
+    - name: Clone engelsystem repo
+      ansible.builtin.git:
+        repo: https://github.com/engelsystem/engelsystem.git
+        dest: "{{ ansible_user_dir }}/engelsystem"
+        version: main
+        force: true
+        update: false
+    - name: apply patch to code to add train drivers license
+      ansible.posix.patch:
+        src: patches/engelsystem/code_en.patch
+        dest: "{{ ansible_user_dir }}/engelsystem/includes/view/UserDriverLicenses_view.php"
+    - name: apply patch to german locale add train drivers license
+      ansible.posix.patch:
+        src: patches/engelsystem/lang_de.patch
+        dest: "{{ ansible_user_dir }}/engelsystem/resources/lang/de_DE/default.po"