fix: add a temporary model version

The version field is empty in the source GEM

Author: IVANDOMENZAIN

ecMouseGEM/scripts/preprocessModel.m

@@ -66,7 +66,7 @@
     name = model.name;
 end
 if isfield(model,'version')
-    version = model.version;
+    version = '0';
 end
 if isempty(name) && isempty(version) && isfield(model,'id')
     try