Use ems_id instead of type

[vi-patel]

Feature Request

After a meeting with the Cloudforms team it was suggested to use ems_id instead of type.

Summary

We should go through our code and replace type with ems_id.
A Provider type deals with a type, and may not be unique for each provider (For example, if we added two OpenStack providers with different hosts, they would have the same type value, but they would each have their own unique ems_id).

• Possible issue of concern (multiple providers of the same type added, which ems_id gets selected, can the user pass this value?).

Importance

It is important to update this so we can support being able to select unique Providers.

Use Cases