Loads .env file from another package

[joaobaronisilva]

This feature makes it possible to load an environment file from another package. Made using the same existing structure in TextStyle & IconData

[Yodart]

This is great. We really need this here.

[java-james]

@joaobaronisilva Thanks for the PR. We have just merged a couple of others that have conflicted with this change. Can you please update the conflicts? If not I will take a look when I can.

Thanks again!

[java-james]

Also if you have time some read me documentation on this new feature would be a great addition for users picking up the package!

[java-james]

I will prioritise releasing this change when merged.