Setting a column as display excluded doesn't bring up the row when searching

## Expected Behavior

When setting a column as display excluded, the column should not be visible but searching for the contents of the column should show the corresponding row. This behavior worked in version 2 but is breaking in version 3.

## Current Behavior

When setting a column as display excluded, the column should is not visible as expected but searching for the contents of the column does not show the corresponding row

## Steps to Reproduce (for bugs)

1. Create a column with display set as excluded
2. Search the table for contents of that row
3. Corresponding row will not show up in search results

## Your Environment

| Tech | Version |
|--------------|---------|
| Material-UI | 4.9.0 |
| MUI-datatables | 3.4.1 |
| React | 16.11.0 |
| browser | Safari 14.0 |

No source file or test is named. Start by reproducing the issue with a display-excluded column and searching for its contents, then locate the table's search and filtering entry points. Done means the column remains hidden while its matching row appears in search results, with a regression test covering the behavior.

Written by the indexing model from the issue text.