Pass GCS Options via Connection String (GONRG-975)

Adds ability to pass credentials as the connection string parameter for Google Cloud Storage

Type of change

• Bug Fix
• Feature

Does this introduce a change in the core logic?

• [NO]

Does this introduce a change in the cloud provider implementation, if so which cloud?

• AWS
• Azure
• GCP
• IBM

Does this introduce a breaking change?

• [NO]

What is the current behavior?

There is no way to pass credentials as the parameter for SEGYUtils commandline

What is the new/expected behavior?

GCP credentials can be passed via Connection String

Have you added/updated Unit Tests and Integration Tests?

• [NO]

Changes:

• GoogleOpenOptions creation was extended;
• "Connection URL and Connection String" documentation was updated respectively.