Customize Minimum Column Number in find_tables

[lmX2015]

Is your feature request related to a problem? Please describe.

I recently had examples of tables with one column only in forms / FAQ types of document (see below for an example of such documents).

This still makes sense to have this data treated table as the cells help to properly split the text.

However it seems that this snippet is removing such tables, despite the cells being properly recognized.

    # PyMuPDF modification:
    # Remove tables without text or having only 1 column
    for i in range(len(tables) - 1, -1, -1):
        r = EMPTY_RECT()
        x1_vals = set()
        x0_vals = set()
        for c in tables[i]:
            r |= c
            x1_vals.add(c[2])
            x0_vals.add(c[0])
        if (
            len(x1_vals) < 2
            or len(x0_vals) < 2
            or white_spaces.issuperset(
                page.get_textbox(
                    r,
                    textpage=TEXTPAGE,
                )
            )
        ):
            del tables[I]

Describe the solution you'd like

Is it possible to make the minimum column / row an attribute of the TableFinder Settings?

Describe alternatives you've considered
Are there several options for how your request could be met?

I can make a PR for that if you are ok with the idea.

Additional context
Add any other context or screenshots about the feature request here.

Basic example
Question.pdf