interface : change efl_pack_grid and efl_ui_grid to efl_pack_table and efl_ui_table

interface : change efl_pack_grid and efl_ui_grid to efl_pack_table and efl_ui_table

Summary:
Change name of 'grid' to 'table' for matching on common ui naming
and avoiding confusion with 'gengrid' and 'grid view'.
grid will be introduced as grid image view after.

Test Plan:
checked make & make install
checked make check - there are errors but not related with these changes.
checked make examples - there are errors in cxx but not related with these changes.
checked make discheck - failed
test in elementary_test with Efl.Ui.Table and Table_static.

Reviewers: raster, cedric, jpeg, felipealmeida

Differential Revision: https://phab.enlightenment.org/D5668