Add multi region support

[dheerajoruganty]

Issue #, if available:

2

Description of changes:

• Add Multi Region Support to deploy instances over multiple regions
• Add Tokenizer Support
• Add Config file support
• Add handling to generate Security Groups and Key Pairs across Regions

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[dheerajoruganty]

• Added support for Capacity Reservation
• Added support for passing instance_id and skip ec2 creation.

[dheerajoruganty]

• Updates to Readme and Config.yml