Add `Problem` to validate sets of `OutputOutcome`, fix #2542 (#2543)

Co-authored-by: Bernie White <bewhite@microsoft.com>

docs/CHANGELOG-v3.md

@@ -67,6 +67,8 @@ What's changed since pre-release v3.0.0-B0203:
     [#1860](https://github.com/microsoft/PSRule/issues/1860)
   - Fixed aggregation of reasons with `$Assert.AnyOf()` by @BernieWhite.
     [#1829](https://github.com/microsoft/PSRule/issues/1829)
+  - Added `Problem` to validate sets of `OutputOutcome` by @nightroman
+    [#2542](https://github.com/microsoft/PSRule/issues/2542)
 
 ## v3.0.0-B0203 (pre-release)
 

src/PSRule/PSRule.psm1

@@ -1309,7 +1309,7 @@ function New-PSRuleOption {
 
         # Sets the Output.Outcome option
         [Parameter(Mandatory = $False)]
-        [ValidateSet('None', 'Fail', 'Pass', 'Error', 'Processed', 'All')]
+        [ValidateSet('None', 'Fail', 'Pass', 'Error', 'Problem', 'Processed', 'All')]
         [Alias('Outcome')]
         [PSRule.Rules.RuleOutcome]$OutputOutcome = 'Processed',
 
@@ -1612,7 +1612,7 @@ function Set-PSRuleOption {
 
         # Sets the Output.Outcome option
         [Parameter(Mandatory = $False)]
-        [ValidateSet('None', 'Fail', 'Pass', 'Error', 'Processed', 'All')]
+        [ValidateSet('None', 'Fail', 'Pass', 'Error', 'Problem', 'Processed', 'All')]
         [Alias('Outcome')]
         [PSRule.Rules.RuleOutcome]$OutputOutcome = 'Processed',
 
@@ -2376,7 +2376,7 @@ function SetOptions {
 
         # Sets the Output.Outcome option
         [Parameter(Mandatory = $False)]
-        [ValidateSet('None', 'Fail', 'Pass', 'Error', 'Processed', 'All')]
+        [ValidateSet('None', 'Fail', 'Pass', 'Error', 'Problem', 'Processed', 'All')]
         [Alias('Outcome')]
         [PSRule.Rules.RuleOutcome]$OutputOutcome = 'Processed',