[proposed procedures] add awsgi into Lambda function directly

[jo9553]

1. create a folder "awsgi" under the main folder (normally, it is the same name as the function name)
2. create a blank file "init.py" (it seems not showing correctly, that is "__ init __ .py", no space between)
3. create another file "awsgi.py"
4. open the file awsgi.py, copy the code from this repository slank/awsgi/awsgi/init.py, replace the code provided from the issue [New requirement] Solution to make awsgi working with Http Api that invoke Lambda functions #67 if you are using HTTP API
5. in the main code, should be lambda_function.py, add "from awsgi import awsgi"
6. that's it...