Added GetApplicationsCost method for Experiments cost

[shivanik6z]

Description

• Added GetApplicationsCost method to get applications cost in general ( workspaces or experiments, can be differentiated using tags )
• made GetWorkspacesCost deprecated

Type of change

• [ ❌] Bug fix (non-breaking change which fixes an issue)
• [ ✅] New feature (non-breaking change which adds functionality)
• [ ❌] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ❌] This change requires a documentation update

why

To get costs of experiments and workspaces both while avoiding redundant code.

How Has This Been Tested?

locally using the test client run go run cmd/testclient/client.go -method=GetApplicationsCost on running server to get costs of workspaces or experiments. NOTE: tag application id won't return any cost as of now.

Checklist:

• [✅] My code follows the style guidelines of this project
• [ ✅] I have performed a self-review of my own code
• [ ✅] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ✅] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ✅] New and existing unit tests pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules

[sonarcloud[bot]]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
28 Code Smells

No Coverage information
19.0% Duplication

[imaskm]

LGTM