META-2743: Changes to set Atlas Classification as RangerTags from Atlas authorizor for tag based authorization.

[nixon-atlan]

Change description

Changes to set Atlas Classification as RangerTags from Atlas authorizor for tag based authorization.

Description here

Type of change

• Bug fix (fixes an issue)
• New feature (adds functionality)

Related issues

Fix #1

Checklists

Development

• Lint rules pass locally
• Application changes have been tested thoroughly
• Automated tests covering modified code pass

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

Code review

• Pull request has a descriptive title and context useful to a reviewer. Screenshots or screencasts are attached as necessary
• "Ready for review" label attached and reviewers assigned
• Changes have been reviewed by at least one other contributor
• Pull request linked to task tracker where applicable

[mukcool]

Comments : https://atlanhq.slack.com/archives/C02CS1YQMFU/p1638161904377600

[mukcool]

@nixon-atlan we should also base the PR to base branch, and remove unnecessary commits -- health of tagsync / tagsync and mappers -- we do not need anymore

[nixon-atlan]

Comments : https://atlanhq.slack.com/archives/C02CS1YQMFU/p1638161904377600
Code Refactoring , separate out the fetching classification from context into method -done