#43 change jar file name

[mandy-chessell]

@davidradl This is the first time I have seen this work in the samples directory and I have a number of comments:

• Please change the build in sample-omrs-proxy-servers to use maven like all the other modules in this repository - the plan is to have a single maven build and this module is inconsisten using gradle.
• I do not understand why there are references to generated code from subject-area-server. This looks like an error since there should be no dependency between an OMRS component and an OMAS.
• Please rename the following modules to have more meaningful names:
  • sample-omrs-proxy-servers
  • polling-file-omrs-proxy I have added comments to the issue

[davidradl]

@mandy-chessell I will address them in subsequent prs. This is very much work in progress at the moment - I need to clean up a lot of the code including what you have identified. I appreciate this early feedback