DBT project initialisation and configuration

[Satendra-SR]

Is your feature request related to a problem? Please describe. We need to add scaffolding in the current DBT setup for WhatsApp analytics before we start utilizing it for creating data sources

Describe the solution you'd like

• [x] Setup connections with BigQuery source and destination
• [x] Setup configurations
• [x] Directory structure

Describe alternatives you've considered NA

Additional context NA

Acceptance Criteria

• [x] The connection with Bigquery sources and destination should be running properly
• [x] All the configurations should be working fine

Documentation Add whatever documentation will be required here.

[Satendra-SR]

This is working fine, closing now