docs: add formats proposal

tools/brick_generator/README.md

@@ -227,6 +227,8 @@ vars:
     description: The display name
     default: Display Name
     prompt: "What is the display name?"
+    formats:
+      - title_case
 
   project_name:
     compilable: wyatt_app_template
@@ -234,6 +236,8 @@ vars:
     description: The project name
     default: wyatt_app
     prompt: "What is the project name?"
+    formats:
+      - snake_case
 
   bundle_id:
     compilable: io.wyattapp.new
@@ -241,6 +245,8 @@ vars:
     description: The bundle id used in Android and iOS
     default: io.wyattapp.new
     prompt: "What is the bundle id?"
+    formats:
+      - dot_case
 
   flutter:
     type: boolean

tools/brick_generator/assets/MainActivity.kt

@@ -1,6 +0,0 @@
-package {{#dotCase}}{{org_name}}{{/dotCase}}.{{#snakeCase}}{{project_name}}{{/snakeCase}}
-
-import io.flutter.embedding.android.FlutterActivity
-
-class MainActivity: FlutterActivity() {
-}