Added role dns/master_handlers for makefile handler

roles/dns/master_handlers/default/main.yml

@@ -0,0 +1,4 @@
+---
+
+# domain: example.com
+# domain_environment_directory

roles/dns/master_handlers/handlers/main.yml

@@ -0,0 +1,6 @@
+---
+
+- name: reconfigure zone {{ domain }}
+  make:
+    chdir: "{{ domain_environment_directory }}"
+  notify: reload bind9

roles/dns/master_handlers/meta/main.yml

@@ -0,0 +1,6 @@
+---
+
+allow_duplicates: yes
+
+dependencies:
+  - dns/handlers