Introduce a quality_type metadata entry that can be used to distinguish qualities

Since we want the profile to be selected based on material and we have
profiles like "ABS Normal" and "PLA Normal" we need some way to make
sure we select the same.

Contributes to CURA-2006

cura/Settings/ContainerManager.py

@@ -422,7 +422,7 @@ class ContainerManager(QObject):
 
             new_quality_changes = user_container.duplicate(stack.getId() + "_" + unique_id, unique_name)
             new_quality_changes.setMetaDataEntry("type", "quality_changes")
-            new_quality_changes.addMetaDataEntry("quality", quality_container.getId())
+            new_quality_changes.addMetaDataEntry("quality", quality_container.getMetaDataEntry("quality_type"))
 
             if not global_stack.getMetaDataEntry("has_machine_quality"):
                 new_quality_changes.setDefinition(UM.Settings.ContainerRegistry.getInstance().findContainers(id = "fdmprinter")[0])

resources/quality/high.inst.cfg

@@ -5,6 +5,7 @@ definition = fdmprinter
 
 [metadata]
 type = quality
+quality_type = high
 weight = -3
 
 [values]

resources/quality/low.inst.cfg

@@ -5,6 +5,7 @@ definition = fdmprinter
 
 [metadata]
 type = quality
+quality_type = low
 weight = -1
 
 [values]

resources/quality/normal.inst.cfg

@@ -5,6 +5,7 @@ definition = fdmprinter
 
 [metadata]
 type = quality
+quality_type = normal
 weight = -2
 
 [values]