Add APIv4 endpoint to permanently delete teams (#6604)

Tests are added, however, it only tests the property if its soft deleted. In the
background it will be hard deleted, but that is untestable through a integration
test.

api4/params.go

@@ -39,6 +39,7 @@ type ApiParams struct {
 	JobType        string
 	Page           int
 	PerPage        int
+	Permanent      bool
 }
 
 func ApiParamsFromRequest(r *http.Request) *ApiParams {
@@ -132,6 +133,10 @@ func ApiParamsFromRequest(r *http.Request) *ApiParams {
 		params.Page = val
 	}
 
+	if val, err := strconv.ParseBool(r.URL.Query().Get("permanent")); err != nil {
+		params.Permanent = val
+	}
+
 	if val, err := strconv.Atoi(r.URL.Query().Get("per_page")); err != nil || val < 0 {
 		params.PerPage = PER_PAGE_DEFAULT
 	} else if val > PER_PAGE_MAXIMUM {