dsc_lite : Support the Sensitive data type

When emitting PowerShell code, the dsc_lite module does not understand the Sensitive data type, and therefore does not emit code appropriately when users wish to use Sensitive in manfiests.

This was previously addressed in MODULES-5743 via PR https://github.com/puppetlabs/puppetlabs-dsc/pull/324 and similar changes that were made there to base_dsc/powershell.rb should be made to https://github.com/puppetlabs/puppetlabs-dsc_lite/blob/2a2ba134c5e50807649ad689271db54b39ddce6f/lib/puppet_x/puppetlabs/dsc_lite/powershell_hash_formatter.rb#L7-L22