Add help text to Dict keys

It may be useful to let the user set an help/tooltip on the keys of a Dict.

assigned to @ced

added sao tryton trytond type::feature + 1 deleted label

added 1 deleted label and removed 1 deleted label

review284371002 updated at https://codereview.tryton.org/284371002/#ps286251003

review284371002 updated at https://codereview.tryton.org/284371002/#ps274451002

review284371002 updated at https://codereview.tryton.org/284371002/#ps276471002

New changeset dea044100395 by Cédric Krier in branch 'default':
Add help text to Dict keys
https://hg.tryton.org/modules/product_attribute/rev/dea044100395

added 1 deleted label and removed 1 deleted label

closed

New changeset e7af3c89af5c by Cédric Krier in branch 'default':
Add help text to Dict keys
https://hg.tryton.org/sao/rev/e7af3c89af5c

New changeset 129b3cd3b9a7 by Cédric Krier in branch 'default':
Add help text to Dict keys
https://hg.tryton.org/tryton/rev/129b3cd3b9a7

New changeset 9149871fdc8d by Cédric Krier in branch 'default':
Add help text to Dict keys
https://hg.tryton.org/trytond/rev/9149871fdc8d

New changeset fbe10e0beb14 by Cédric Krier in branch 'default':
Add help text to Dict keys
https://hg.tryton.org/tryton-env/rev/fbe10e0beb14

marked #4268 (closed) as a duplicate of this issue

marked this issue as related to #4268 (closed)