Build - Publish CDK Construct to NPM

[huntharo]

Motivations

• Need the construct to be publicly available

Acceptance Criteria

• Pick good package names for construct and stacks
• Update the package names
• Publish the module to NPM
• Remove lambdadispatch.ghpublic.pwrdrvr.com hard-coded usage in the CDK Construct
• Allow over-riding DNS names and cert names in the CDK Stack