AOP-10 | http client

[KlnSdr]

• the http client should implement basic functions to make a http request to a server
• this includes setting the request type, request path, headers and query parameters
• it should provide functions to receive and interact with a produced response
• it should produce and consume json data

  review

• [ ] requirements per ticket definition are met or a reason was stated if they were only partially met
• [ ] code style was adhered to
• [ ] feature branche is rebased

[KlnSdr]

adds a simple abstraction over the build in http client provided by java multiple request can bes sent using one client instance if they are to the same url/ip

[sbstnschkhn]

Dear Mr. Schneider, Your code for your client worked nearly perfect but one exception. The URL in the query hashmap can't handle white space. Your faithfully Sebastian D. Schekahn.

[KlnSdr]

query parameter keys and values now get url encoded to avoid IllegalArgument Exceptions when passing a string contaning whitespaces to the query