Wrap pd.merge with nested columns support

[hombit]

Feature request

It would be great if we allowed joining dataframes on sub-columns, something like that:

import nested_pandas as npd

merged1 = npd.merge(ndf1, df1, left_on="nested.id", right_on="id")
merged2 = npd.merge(ndf1, ndf2, left_on="nested.id", right_on="lc.oid")

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