Extract HTTP client logic to HttpClient and JavaHttpClient. Make Http…

[githubmicrob]

…Client configurable.

Summary

Extracted HTTP client functionality to separate class. Introduced HttpClient interface to make the implementation of HTTP client replaceable. In our case having another implementation is necessary because Java implementation doesn't work with HTTPS proxies.

Checklist

• [ x ] Added changelog entry
• [ x ] Ran unit tests (rake test:unit)
• I alphabetized all attributes, parameters, and methods by name in any class file I changed
• I have linked the JIRA ticket in the summary section
• I have reviewed the JIRA ticket to ensure all AC's are met
• [ x ] I understand that unless this is a Draft PR or has a DO NOT MERGE label, this PR is considered to be in a deploy ready state and can be deployed if merged to main