interpreting index name in min_itemsize specification #11364, #10381
closes #10381 

The fix replaces named index columns in [`Table.index_axes` with their names](https://github.com/pydata/pandas/compare/master...DSLituiev:master#diff-1b15d1477da3a0548d2dd72a5d023d00L3323)  and [corrects `min_itemsize` if it contains 'index' item which is not in `Table.index_axes`](https://github.com/pydata/pandas/compare/master...DSLituiev:master#diff-1b15d1477da3a0548d2dd72a5d023d00R3093)
