Lab 07: Cowsay API

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Create an HTTP Server using the NodeJS http module
Create a custom body parsing module that is used for parsing the body of all POST requests
For all requests made to /, the server should respond with the following:
- a header containing Content-Type: text/plain
- a status code of 200
- a response with the string "hello from my server!"
For all GET requests made to /cowsay, the server should respond with the following:
- the query string should have the key value text=<message>
- the response header should include Content-Type: text/plain
- if the query text=messsage is set, respond with:
  - a status code of 200
  - a response body that includes the value returned from cowsay.say({ text: <querystring text> })
- if the query text=message is not set, respond with:
  - status code = 400
  - a body including the value returned from cowsay.say({ text: 'bad request' })
For all POST requests made to /cowsay, the server should respond with the following:
- the response header should include Content-Type: text/plain
- if the JSON {text: messsage} is set in the body, respond with:
  - a status code of 200
  - a response body including the value returned from cowsay.say({ text: <querystring text> })
- if the JSON {text: messsage} is not set in the body, respond with:
  - a status code of 400
  - a body including the value returned from cowsay.say({ text: 'bad request' })

2pts: add the ability to change the cowfile - ex: dragon, sheep, etc (note: this should be done through the querystring)