Overhaul reuse structure from role to task orientation

The overall config this will end up with is going to be nowhere
near complicated enough to require the segmented structure of roles.
A single directory of reusable tasks and resources will be much better

tasks/packages/repos.yml

@@ -0,0 +1,32 @@
+---
+- name: Install repositories on CentOS 8
+  when: ansible_distribution == "CentOS" and ansible_distribution_major_version == "8"
+  become: true
+  block:
+    - name: Enable Extra Packages for Enterprise Linux on CentOS 8
+      dnf:
+        state: present
+        name: https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
+
+    # The testing repo had to be enabled for a previous version of systemd-networkd
+    # to be installed
+    - name: Disable EPEL-Testing repository on CentOS 8
+      lineinfile:
+        path: /etc/yum.repos.d/epel-testing.repo
+        regexp: "enabled=(0|1)"
+        line: "enabled=0"
+        insertbefore: "^$"
+        firstmatch: true
+
+    - name: Enable the power tools repository on CentOS 8
+      lineinfile:
+        path: /etc/yum.repos.d/CentOS-PowerTools.repo
+        regexp: "enabled=(0|1)"
+        line: "enabled=1"
+
+- name: Enable Extra Packages for Enterprise Linux on CentOS 7
+  become: true
+  when: ansible_distribution == "CentOS" and ansible_distribution_major_version == "7"
+  yum:
+    state: present
+    name: https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm