Nbforager

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**Fixed:** NbForager.clear() tree
**Fixed:** rename base_ca.py > base_ac.py
**Added:** APPS replaced by NbApi.apps()
**Changed:** dependencies

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**Added:** nb_tree.am_to_object_type()

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**Added:** NbApi.get()

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**Fixed:** object_type_to_am() vminterface

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**Fixed:** helpers.object_type_to_am()

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**Added:** helpers.object_type_to_am()

**Fixed:** BaseC._query_count() offset