ID-4078: new tags and metric names for idporten-login (#2)

`app_exceptions_internal_api_total{application="idporten-login",oidc_integration="minid",environment="docker",exception_type="connect",system="internal_api",}
1.0`

eller for krr-cp vil det bli ca slik:

``app_exceptions_internal_api_total{application="idporten-login",oidc_integration="krr",environment="docker",exception_type="connect",system="internal_api",}
1.0``

src/main/java/no/idporten/metric/constants/MetricCategories.java

@@ -5,4 +5,5 @@ public class MetricCategories {
         public final static String EXTERNAL_SYSTEM = "system";
         public final static String EXCEPTION_TYPE = "exception_type";
         public final static String EID = "eid";
+        public final static String OIDC_INTEGRATION = "oidc_integration";
 }

src/main/java/no/idporten/metric/constants/MetricNames.java

@@ -3,4 +3,8 @@
 public class MetricNames {
     public final static String APP_EXCEPTION_NAME= "app_exceptions";
 
+
+    // Only for idporten-login for dynamic create counters since we allready has the APP_EXCEPTION_NAME defined, then new counters with same name is not added.
+    public final static String APP_EXCEPTION_INTERNAL_API_NAME= "app_exceptions_internal_api";
+
 }

src/main/java/no/idporten/metric/constants/MetricValues.java

@@ -2,7 +2,11 @@
 
 public class MetricValues {
 
-    public final static String EXTERNAL_SYSTEM_API= "api";
+    // for internal apis inside namespace
+    public final static String EXTERNAL_SYSTEM_INTERNAL_API= "internal_api";
+
+    // for external apis outside of namespace
+    public final static String EXTERNAL_SYSTEM_EXTERNAL_API= "external_api";
     public final static String EXTERNAL_SYSTEM_REDIS= "redis";
     public final static String EXTERNAL_SYSTEM_DB= "database";
     public final static String EXCEPTION_TYPE_CONNECT= "connect";