Prompt for nickname on registration (#4)

Allow users to set a nickname while registering, controlled by settings. Also, add a setting to hide the username input entirely and randomly generate the username.

Co-authored-by: Sami Mazouz <sychocouldy@gmail.com>

extensions/nicknames/composer.json

@@ -1,41 +1,56 @@
 {
-    "name": "flarum/nicknames",
-    "description": "Allow users to set nicknames.",
-    "type": "flarum-extension",
-    "keywords": ["nicknames"],
-    "license": "MIT",
-    "support": {
-        "issues": "https://github.com/flarum/core/issues",
-        "source": "https://github.com/flarum/nicknames",
-        "forum": "https://discuss.flarum.org"
-    },
-    "homepage": "https://flarum.org",
-    "funding": [
-        {
-            "type": "website",
-            "url": "https://flarum.org/donate/"
-        }
-    ],
-    "require": {
-        "flarum/core": "^1.1"
-    },
-    "autoload": {
-        "psr-4": {
-            "Flarum\\Nicknames\\": "src/"
-        }
-    },
-    "extra": {
-        "branch-alias": {
-            "dev-master": "1.x-dev"
-        },
-        "flarum-extension": {
-            "title": "Nicknames",
-            "category": "feature",
-            "icon": {
-                "name": "fas fa-user-tag",
-                "backgroundColor": "#8E4529",
-                "color": "#ffffff"
-            }
-        }
+  "name": "flarum/nicknames",
+  "description": "Allow users to set nicknames.",
+  "type": "flarum-extension",
+  "keywords": [
+    "nicknames"
+  ],
+  "license": "MIT",
+  "support": {
+    "issues": "https://github.com/flarum/core/issues",
+    "source": "https://github.com/flarum/nicknames",
+    "forum": "https://discuss.flarum.org"
+  },
+  "homepage": "https://flarum.org",
+  "funding": [
+    {
+      "type": "website",
+      "url": "https://flarum.org/donate/"
     }
+  ],
+  "require": {
+    "flarum/core": "^1.1"
+  },
+  "autoload": {
+    "psr-4": {
+      "Flarum\\Nicknames\\": "src/"
+    }
+  },
+  "extra": {
+    "branch-alias": {
+      "dev-master": "1.x-dev"
+    },
+    "flarum-extension": {
+      "title": "Nicknames",
+      "category": "feature",
+      "icon": {
+        "name": "fas fa-user-tag",
+        "backgroundColor": "#8E4529",
+        "color": "#ffffff"
+      }
+    }
+  },
+  "scripts": {
+    "test": [
+      "@test:unit",
+      "@test:integration"
+    ],
+    "test:unit": "phpunit -c tests/phpunit.unit.xml",
+    "test:integration": "phpunit -c tests/phpunit.integration.xml",
+    "test:setup": "@php tests/integration/setup.php"
+  },
+  "require-dev": {
+    "flarum/testing": "^1.0",
+    "flarum/core": "1.x-dev"
+  }
 }