Improve specificity of error messages

[rdbahm]

When receiving an error from almost any cmdlet, it will be generic and does not specify specifically what kind of error occurred, especially if that error occurred in a deeper level function.

[rdbahm]

Maybe we should be using syntax like:

$Exception = New-Object System.WhateverException "Error message goes here"
Throw $Exception

Specifically, this will help by changing the error type from a "Write-Error exception" to the proper type.

[rdbahm]

Looks like we should also probably use "InnerException" to collect up the root cause. For example:

$InnerException = New-Object System.SomethingException "This is the first exception."
$OuterException = New-Object System.OtherException ("This is the outer exception",$InnerException)

[rdbahm]

Did some work on this in:
0fae76b
70c73e8
208d9c2
d0c204e
d331403

Not complete by any means, but considering set-ucsrestparameter a test implementation of one way to do this.

[rdbahm]

I'm still not pleased with this but I haven't spent enough time figuring out a good way to do it.