+: git-cz config file

Added a git-cz config file because otherwise I cannot write proper
commit messages as I forget our rules all the time.

changelog.config.js

@@ -0,0 +1,43 @@
+module.exports = {
+    "disableEmoji": true,
+    "list": [
+        "+",
+        "*",
+        "-",
+    ],
+    "maxMessageLength": 64,
+    "minMessageLength": 3,
+    "questions": [
+        "type",
+        "scope",
+        "subject",
+        "body",
+        "issues"
+    ],
+    "scopes": [
+        "",
+        "global",
+        "dnsfilter",
+        "home",
+        "dnsforward",
+        "dhcpd",
+        "documentation"
+    ],
+    "types": {
+        "+": {
+            "description": "A new feature",
+            "emoji": "",
+            "value": "+"
+        },
+        "*": {
+            "description": "A code change that neither fixes a bug or adds a feature",
+            "emoji": "",
+            "value": "*"
+        },
+        "-": {
+            "description": "A bug fix",
+            "emoji": "",
+            "value": "-"
+        }
+    }
+};