Feature/environment tweaks

[joe-lipson]

This turned out to be much larger than planned. There's still a bit to do but it seemed like a good point to get these changes in, the rest can be done separately

• Use the branch / environment in resource naming to help with identification and to allow more that one deployment per account
• Export the Repository URI from the base stack CloudFormation template so it can be used in package and deploy components
• Export the Userdetails role ARN from the base stack so it can be used in package and deploy components
• Set AUTO_DEPLOY to true by default, then false in production
• Set Slack notification to false by default, true in production
• Moved all variable gathering to the export-config build projects, all config is assembled here and can then be accessed by any downstream actions and codebuild projects
• Remove hard coded hosted zone and domain and add new configuration values for each environment to config.ini
• Remove hardcoded values from update-kubeconfig command
• Renamed container repo variable from REPO to ECR_REPO. REPO was already being used for the code repo
• Remove hardcoded ECR_REPO var initialisation, the value is now exported from the base stack
• Updated eksctl create iamserviceaccount command to work with new IAM role, replaced hardcoded values
• Removed CLI command to set CERTIFICATE_ARN, this is a now a config value for each environment
• Reorganised and removed hardcoded values from the helm upgrade command
• Remove hardcoded IMAGE_TAG from deployment codebuild project
• Remove hardcoded config values from docker package commands
• Upgraded package container to BUILD_GENERAL1_MEDIUM
• Remove the app deploy CodeBuild project from the package pipeline, it's not used here
• Add IMAGE_NAME and IMAGE_TAG as config values
• Remove pre-Bedrock config values from config.ini, these are no longer used
• Add SSL_CERTIFICATE as config values