create core framework

core/example/hello.py

@@ -0,0 +1,20 @@
+from bugis.core import BugisApp, HttpContext
+
+
+class Hello(BugisApp):
+
+    async def handle_request(self, ctx: HttpContext) -> None:
+        async for chunk in ctx.request_body:
+            print(chunk)
+        await ctx.send_str(200, 'Hello World')
+
+
+app = BugisApp()
+
+
+@app.GET('/hello')
+@app.GET('/hello2')
+async def handle_request(ctx: HttpContext) -> None:
+    async for chunk in ctx.request_body:
+        print(chunk)
+    await ctx.send_str(200, 'Hello World')