Refactor HttpClient

Related issues:

• PLFM-4116 - Getting issue details... STATUS

• PLFM-3975 - Getting issue details... STATUS

Open

We propose to separate the following projects from PLFM:

• SynapseJavaClient

• SimpleHttpClient

• migration

• integration-test

lib-search, lib-doi, and lib-markdown will remain in PLFM and depends on SimpleHttpClient.

SimpleHttpClient provides a simplified interface for clients that used HttpClient.