Ad-Hoc Filters & Scopes: don't remap one-of to regex in frontend (#92995)

* send "one-of" and "not-one-of" directly to datasource (instead of changing them to regex)
* Added to Ad-hoc and and Scope Filters: The "values" prop ([]string) and the "one-of" and "not-one-"of" operators. "values" is used with one-of and not-one-of. 
* adds prometheus support for the above 


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Co-authored-by: Ashley Harrison <ashley.harrison@grafana.com>
Co-authored-by: Todd Treece <todd.treece@grafana.com>

pkg/promlib/models/query.go

@@ -89,8 +89,10 @@ type ScopeSpec struct {
 // ScopeFilter is a hand copy of the ScopeFilter struct from pkg/apis/scope/v0alpha1/types.go
 // to avoid import (temp fix)
 type ScopeFilter struct {
-	Key      string         `json:"key"`
-	Value    string         `json:"value"`
+	Key   string `json:"key"`
+	Value string `json:"value"`
+	// Values is used for operators that require multiple values (e.g. one-of and not-one-of).
+	Values   []string       `json:"values,omitempty"`
 	Operator FilterOperator `json:"operator"`
 }
 
@@ -103,6 +105,8 @@ const (
 	FilterOperatorNotEquals     FilterOperator = "not-equals"
 	FilterOperatorRegexMatch    FilterOperator = "regex-match"
 	FilterOperatorRegexNotMatch FilterOperator = "regex-not-match"
+	FilterOperatorOneOf         FilterOperator = "one-of"
+	FilterOperatorNotOneOf      FilterOperator = "not-one-of"
 )
 
 // Internal interval and range variables