Chore - Sync up util packages with latest Flyway

[hhandoko]

Context

The first cassandra-migration version is based on older version of Flyway (v3). The first task to refactor the codebase closer to Flyway v4 has been done, however the util packages has been left as-is. This task will require the util packages to be compared and synced-up if necessary.

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Definition of Done

Compare Flyway v4 util packages with current cassandra-migration version and sync-up if necessary.

[hhandoko]

Files with notable differences (relative to /util):

• FeatureDetector.java - Additional feature detection, not all would be applicable for cassandra-migration
• StopWatch.java - Update to nanoTime()
• VersionPrinter.java - Using parameter-less printVersion()
• Scanner.java - Seems to have additional support for Android
• FileSystemScanner.java - Additional check for authz(?)
• ClassUtils.java - New method addJarOrDirectoryToClasspath()
• ClassPathScanner.java - Updated method signature and various error handling