Docs for developing a CLI plug-in need updates for v2 profiles

[t1m0thyj]

Description

The contents of DataSets.handler.ts are outdated because they contain deprecated code that can only load v1 profiles.

Pages to Update

https://docs.zowe.org/stable/extend/extend-cli/cli-developing-a-plugin#defining-commands

Screenshots

Expected behavior

The docs should be updated to replace the deprecated params.profiles.get API with new methods of loading team configuration.

Additional context

This issue is related to zowe/zowe-cli-sample-plugin#73