test(pageObjects): Added rxEnvironment Page Object

Added a page object for rxEnvironment. getEnv returns the current environment.
I added this because of the use of both 'this' and 'component' in the module. Javascript objects retain their lexical scope so I don't believe this would cause an issue but I'm ok with a more descriptive name instead of 'component'. I say this not knowing how these components are melded into one, would there be an issue with this and the process to consolidate these components.