Rename parameters to path-parameters

[dsinghvi]

I think the yaml is cleaner when it reads like

storeTracedWorkspaceV2:
        http: POST /store-workspace-trace-v2/submission/{submissionId}
        path-parameters:
          submissionId: submission.SubmissionId
        query-parameters:
          stuff: Stuff
        body: list<submission.TraceResponseV2>

as opposed to

storeTracedWorkspaceV2:
        http: POST /store-workspace-trace-v2/submission/{submissionId}
        parameters:
          submissionId: submission.SubmissionId
        query-parameters:
          stuff: Stuff
        body: list<submission.TraceResponseV2>

[dannysheridan]

Change made.

Example:

getMovie:
          method: GET
          path: /{movieId}
          path-parameters:
            movieId: MovieId