refactor: convert "import" to "from" methods

[eladb]

Implement and apply the following awslint rules:

• awslint:from-method: resources should have at least one static "from" method
• awslint:from-signature: enforce method signature
• awslint:from-attributes: a fromAttributes static method can be used to import from more than a single attribute
• awslint:from-attributes-struct: fromFooAttributes should accept a FooAttributes struct as input
• awslint:no-static-import: forbids a static import (deprecation helper rule)
• awslint:attribute-tag: all resource attributes should have an "@Attribute" doc tag
• awslint:attribute-readonly: all attributes must be readonly properties

Many resources now have an additional fromFooArn or fromFooName for importing from the intrinsic attribute.

Misc:

• Deprecate Token.unresolved in favor of Token.isToken (more idiomatic).
• Added eager resolution of Fn.select and Fn.split in case they receive concrete values
• Refactoring of awslint (decouple "resource" from "cfn-resource").
• Added iam.Grant.drop which allows "dropping" a grant on the floor for imported resources

NOTE: many of the new methods do not have inline documentation. We will address this in a subsequent pass that will be focused on docs.

Fixes #2450
Fixes #2428
Fixes #2424
Fixes #2429
Fixes #2425
Fixes #2422
Fixes #2423
Fixes #89

BREAKING CHANGE: all Foo.import static methods are now Foo.fromFooAttributes

• All FooImportProps structs are now called FooAttributes
• stepfunctions.StateMachine.export has been removed.
• ses.ReceiptRule.name is now ses.ReceiptRule.receiptRuleName
• ses.ReceiptRuleSet.name is now ses.ReceiptRuleSet.receiptRuleSetName
• secretsmanager.AttachedSecret is now called secretsmanager.SecretTargetAttachment to match service semantics
• ecr.Repository.export has been removed
• s3.Bucket.bucketUrl is now called s3.Bucket.bucketWebsiteUrl
• lambda.Version.functionVersion is now called lambda.Version.version
• ec2.SecurityGroup.groupName is now ec2.SecurityGroup.securityGroupName
• cognito.UserPoolClient.clientId is now cognito.UserPoolClient.userPoolClientId
• apigateway.IRestApiResource is now apigateway.IResource
• apigateway.IResource.resourcePath is now apigateway.IResource.path
• apigateway.IResource.resourceApi is now apigateway.IResource.restApi

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Pull Request Checklist

• Testing
  • Unit test added (prefer not to modify an existing test, otherwise, it's probably a breaking change)
  • CLI change?: coordinate update of integration tests with team
  • cdk-init template change?: coordinated update of integration tests with team
• Docs
  • jsdocs: All public APIs documented
  • README: README and/or documentation topic updated
  • Design: For significant features, design document added to design folder
• Title and Description
  • Change type: title prefixed with fix, feat and module name in parens, which will appear in changelog
  • Title: use lower-case and doesn't end with a period
  • Breaking?: last paragraph: "BREAKING CHANGE: <describe what changed + link for details>"
  • Issues: Indicate issues fixed via: "Fixes #xxx" or "Closes #xxx"
• Sensitive Modules (requires 2 PR approvers)
  • IAM Policy Document (in @aws-cdk/aws-iam)
  • EC2 Security Groups and ACLs (in @aws-cdk/aws-ec2)
  • Grant APIs (only if not based on official documentation with a reference)

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license.

[mergify]

Thanks so much for taking the time to contribute to the AWS CDK ❤️

We will shortly assign someone to review this pull request and help get it
merged. In the meantime, please take a minute to make sure you follow this
checklist:

• PR title type(scope): text
  • type: fix, feat, refactor go into CHANGELOG, chore is hidden
  • scope: name of module without aws- or cdk- prefix or postfix (e.g. s3 instead of aws-s3-deployment)
  • text: use all lower-case, do not end with a period, do not include issue refs
• PR Description
  • Rationale: describe rationale of change and approach taken
  • Issues: indicate issues fixed via: fixes #xxx or closes #xxx
  • Breaking?: last paragraph: BREAKING CHANGE: <describe what changed + link for details>
• Testing
  • Unit test added. Prefer to add a new test rather than modify existing tests
  • CLI or init templates change? Re-run/add CLI integration tests
• Documentation
  • README: update module README to describe new features
  • API docs: public APIs must be documented. Copy from official AWS docs when possible
  • Design: for significant features, follow design process