add kontor-blacksheep and kontor-piccolo as blueprints for new app

kontor-blacksheep/sql_app/piccolo_app.py

@@ -0,0 +1,23 @@
+"""
+Import all of the Tables subclasses in your app here, and register them with
+the APP_CONFIG.
+"""
+
+import os
+
+from piccolo.conf.apps import AppConfig, get_package, table_finder
+
+CURRENT_DIRECTORY = os.path.dirname(os.path.abspath(__file__))
+
+
+APP_CONFIG = AppConfig(
+    app_name="sql_app",
+    migrations_folder_path=os.path.join(CURRENT_DIRECTORY, "piccolo_migrations"),
+    table_classes=table_finder(
+        modules=[".tables"],
+        package=get_package(__name__),
+        exclude_imported=True,
+    ),
+    migration_dependencies=[],
+    commands=[],
+)

kontor-blacksheep/sql_app/tables.py

@@ -0,0 +1,12 @@
+from piccolo.colmns import Integer, Varchar
+from piccolo.table import Table
+
+
+class Expense(Table):
+    amount = Integer()
+    description = Varchar()
+
+
+class Item(Table):
+    id = Varchar(primary_key=True, default=uuid.uuid4())
+    description = Text()