Exports all model files to specified directory.
Will export all model files generated/related to the external software used. Files will be named with model
name (from context) and original suffix (e.g. model.ctl for modelsearch_run1 -> modelsearch_run1.ctl). If no
suffix, file will be named model name and original name (e.g. mytab for modelsearch_run1 ->
modelsearch_run1_mytab)