[wip] fix templates to put Wrapped class into namespace

Also make sure that using types from different namespaces is possible in
interface types

python/templates/ConstWrapped.h.jinja2

@@ -43,5 +43,5 @@ friend std::ostream& operator<<(std::ostream& os, const {{ class_type }}& value)
 
 {% endwith %}
 
-{{ utils.namespace_close(class.namespace )}}
+{{ utils.namespace_close(class.namespace) }}
 #endif

python/templates/Wrapped.h.jinja2

@@ -15,8 +15,6 @@
 {{ utils.namespace_open(class.namespace) }}
 
 {{ macros.class_description(class.bare_type, Description, Author )}}
-
-{{ utils.namespace_close(class.namespace )}}
 class {{ class.bare_type }} : public podio::GenericWrapper<true, {{ Types | join(', ') }}> {
 private:
   // The underlying Wrapper type is Mutable
@@ -40,4 +38,6 @@ public:
 {{ macros.member_setters(Members, use_get_syntax) }}
 };
 
+{{ utils.namespace_close(class.namespace )}}
+
 #endif

tests/datalayout.yaml

@@ -180,8 +180,16 @@ datatypes :
     Author: "Thomas Madlener"
     OneToOneRelations:
       - TypeWithEnergy aSingleEnergyType // single relation
+      - ex42::AnotherTypeWithEnergy energyRelation // another single relation
     OneToManyRelations:
       - TypeWithEnergy manyEnergies // multiple relations
+      - ex42::AnotherTypeWithEnergy moreEnergies // multiple namespace relations
+
+  nsp::EnergyInNamespace:
+    Description: "A type with energy in a namespace"
+    Author: "Thomas Madlener"
+    Members:
+      - double energy // energy
 
 interfaces:
   TypeWithEnergy:
@@ -193,3 +201,12 @@ interfaces:
       - ExampleHit
     Members:
       - double energy // the energy
+
+  ex42::AnotherTypeWithEnergy:
+    Description: "Another interface type for making sure they also work in namespaces"
+    Author: "Thomas Madlener"
+    Types:
+      - ExampleHit
+      - nsp::EnergyInNamespace
+    Members:
+      - double energy // the energy