Replace the GET/POST model with a proper SOAP access model.

This is a full rewrite of the Thycotic getsecret() code. The backend
API class Thycotic has been rewritten to use the SOAP 1.2 API provided
by the Secret Server service. This is more reliable and less likely
to break when Thycotic decides to change their API. *

Also included are proper Gemfiles for including all of the required
Ruby gems, as well as some basic unit tests. These unit tests really
only test that certain things fail as expected right now. Future unit
tests will need to be created that properly mock the soap Driver object
and allow us to test all of our code.

Change-Id: I5a5da13682e95fda78107fdab1e8f18f54c55b66