Adding .gitignore file into the Environment file!

[MichaelAndish]

In order to prevent overwriting or pushing critical data to git repositories, we want to add the .gitignore file to the .insomnia directory.
We can't clone the repository after adding this file!
Here are a few things to do:

• Support for ignoring environments (I fixed this issue by adding Environment directory into the .gitignore file at top directory :) )
• Insomni cli should be able to read Git Secert Keys, when we run the automation test we need to use the environment file, but we don't want to put the environment details into gitfiles.