AWS::ServiceCatalog::PortfolioShare - OrganizationNode and Type

## AWS::ServiceCatalog::PortfolioShare-OrganizationNode
## AWS::ServiceCatalog::PortfolioShare-Type

## Scope of request
Add a new property called "OrganizationNode" that allows you to share your portfolio with the corresponding OrganizationId

Add another new property called "Type" that specifies the type of share.
Valid Values:
- ORGANIZATION
- ORGANIZATIONAL_UNIT
- ACCOUNT

## Expected Behavior
In the console, Service Catalog currently supports sharing to an Organization, an AWS Organization Account, and to Organization Units. This would mimic that functionality.

These new property names match the properties used within the CLI.

## Helpful Links
https://docs.aws.amazon.com/cli/latest/reference/servicecatalog/create-portfolio-share.html

## Category
Management, ServiceCatalog, Organizations

Read the AWS CLI create-portfolio-share reference and inspect the existing AWS::ServiceCatalog::PortfolioShare resource definition. Done means OrganizationNode and Type are represented with the documented ORGANIZATION, ORGANIZATIONAL_UNIT, and ACCOUNT values, matching the sharing options described in the issue.

Written by the indexing model from the issue text.