Cfn-lint

Features
- Include more resource types in [W3037](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#W30307)
CloudFormation Specifications
- Add Resource Type `AWS::CDK::Metadata`
Fixes
- Uncap requests dependency in setup.py
- Check Join functions have lists in the correct sections
- Pass a parameter value for AutoPublishAlias when doing a Transform
- Show usage examples when displaying the help

Fixes
- Support dumping strings for datetime objects when doing a Transform

CloudFormation Specifications
- Update CloudFormation specs to 3.3.0
- Update instance types from pricing API as of 2019.05.23

Features
- Add `Info` logging capability and set the default logging to `NotSet`
Fixes
- Only do rule logging (start/stop/time) when the rule is going to be called
- Update rule [E1019](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#E1019) to allow `Fn::Transform` inside a `Fn::Sub`
- Update rule [W2001](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#W2001) to not break when `Fn::Transform` inside a `Fn::Sub`
- Update rule [E2503](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#E2503) to allow conditions to be used and to not default to `network` load balancer when an object is used for the Load Balancer type

Features
- New rule [E3038](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#E3038) to check if a Serverless resource includes the appropriate Transform
- New rule [E2531](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#E2531) to validate a Lambda's runtime against the deprecated dates
- New rule [W2531](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#W2531) to validate a Lambda's runtime against the EOL dates
- Update rule [E2541](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#E2541) to include updates to Code Pipeline capabilities
- Update rule [E2503](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#E2503) to include checking of values for load balancer attributes
CloudFormation Specifications
- Update CloudFormation specs to 3.2.0
- Update instance types from pricing API as of 2019.05.20
Fixes
- Include setuptools in setup.py requires

CloudFormation Specifications
- Update instance types from pricing API as of 2019.05.16
Fixes
- Update [E7001](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#E7001) to allow float/doubles for mapping values
- Update [W1020](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#W1020) to check pre-transformed Fn::Sub(s) to determine if a Sub is needed
- Pin requests to be below or equal to 2.21.0 to prevent issues with botocore