Add wizard to fill lots on stock move

Following https://discuss.tryton.org/t/automatically-numbering-lots/2148

The idea is to add a wizard that will split move to set lot per quantity but also to set a number with a sequence defined on product if no number is provided.

assigned to @ced

added stock type::feature + 1 deleted label

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review326511002 updated at https://codereview.tryton.org/326511002/#ps328701002

review326511002 updated at https://codereview.tryton.org/326511002/#ps304751003

review326511002 updated at https://codereview.tryton.org/326511002/#ps339061002

review326511002 updated at https://codereview.tryton.org/326511002/#ps337171002

review326511002 updated at https://codereview.tryton.org/326511002/#ps331601003

review326511002 updated at https://codereview.tryton.org/326511002/#ps347201003

New changeset 3d08a1207d55 by Cédric Krier in branch 'default':
Add wizard to add lots and sequence for lot number
https://hg.tryton.org/modules/stock_lot/rev/3d08a1207d55

added 1 deleted label and removed 1 deleted label

closed

New changeset f147d1316f01 by Cédric Krier in branch 'default':
Add wizard to add lots and sequence for lot number
https://hg.tryton.org/modules/stock_lot_sled/rev/f147d1316f01

New changeset 6b10943ccf7c by Cédric Krier in branch 'default':
Add wizard to add lots and sequence for lot number
https://hg.tryton.org/modules/stock_lot_unit/rev/6b10943ccf7c

New changeset 301d6908a80b by Cédric Krier in branch 'default':
Add wizard to add lots and sequence for lot number
https://hg.tryton.org/tryton-env/rev/301d6908a80b