Spring Security Add Build Task for Incrementing Minor Version

Whenever Spring Security increments a minor version, there is some manual work to do:

• Bump the version in SpringSecurityCoreVersion
• Add an .rnc and .xsd file
• Bump the version in schema.handlers
• Bump the version in XsdDocumentedTests
• Bump the schema count in XsdDocumentedTests
• Bump the version in security.tld
• Bump the version in gradle.properties
• Replace the old What's New section with a skeleton

It would be nice to have a task that did all of this and formulated a corresponding Git commit.