Fix bugs in ArMem and make disk loading and storing nicer

source/RobotAPI/libraries/armem/core/base/detail/lookup_mixins.cpp

@@ -35,9 +35,9 @@ namespace armarx::armem::base
 
     void detail::checkHasProviderSegmentName(const MemoryID& providerSegmentID)
     {
-        if (not providerSegmentID.hasEntityName())
+        if (not providerSegmentID.hasProviderSegmentName())
         {
-            throw armem::error::InvalidMemoryID(providerSegmentID, "Provider Segment ID has no provider segment name.");
+            throw armem::error::InvalidMemoryID(providerSegmentID, "Provider segment ID has no provider segment name.");
         }
     }
 
@@ -46,7 +46,7 @@ namespace armarx::armem::base
     {
         if (not coreSegmentID.hasCoreSegmentName())
         {
-            throw armem::error::InvalidMemoryID(coreSegmentID, "Core Segment ID has no core segment name.");
+            throw armem::error::InvalidMemoryID(coreSegmentID, "Core segment ID has no core segment name.");
         }
     }