This function is primarily used to add data to the FacileDataSet's SQLite
database. x is new data to add, and to is the a table of
the form that is expected in the database. We check that the columns of
x are a superset of columns in x and the matching columns are
all of the same class.
conform_data_frame(x, to)
| x | a |
|---|---|
| to | the prototype |
the tibble version of x that is arranged to look
like to.