Address issues 535, 536, and 537

[shamsway]

Description

• Get-RubrikSnapshot has been changed to convert the current date/time to UTC when using the -Latest parameter. This addresses Issue Get-RubrikSnapshot should convert current date to UTC for -Latest #535
• Restore-RubrikVApp and Export-RubrikVApp has been updated to properly deal with -PowerOn being changed to a switch-type parameter. This addresses issue vCD cmdlets need updates for some "switch" type parameters #536
• Export-RubrikVApp has been changed so that it does not request vCD to restore vApp networks if the NICs are removed or unmapped. This addresses issue Export-RubrikVApp should not restore networks in some cases #537

Related Issue

Resolves #535
Resolves #536
Resolves #537

How Has This Been Tested?

Tested via manual tests and unit tests

Screenshots (if appropriate):

Types of changes

What types of changes does your code introduce? Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

Go over all the following points, and put an x in all the boxes that apply. If you're unsure about any of these, don't hesitate to ask. We're here to help!

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTION document.
• I have updated the CHANGELOG file accordingly for the version that this merge modifies.
• I have added tests to cover my changes.
• All new and existing tests passed.

[mwpreston]

Looks good @shamsway - Thanks!