[GSoC] GRC week 2 update

Hi folks,

I want to share the new update on my GSoC project.

There are 4 things that are done for this week:

1. Workflow-dependant parameter have been moved into its own workflow YAML files
2. People now can define their own parameters by modifying their own workflow YAML file
3. Now GRC has a separate repository
4. Now GRC is a submodule of GNU Radio

More information on my newest post.

Best regards,

Zaky