DataGridView's edit controls don't support UIA Text pattern as required by UIA rules

[merriemcgaw]

• .NET Core Version:
  All

• Have you experienced this same bug with .NET Framework?:
  yes

Problem description:
DataGridView needs to support the TextPattern. Accessibility Insights reports failures for this issue

Expected behavior:
Accessibility Insights should not report failures.

Minimal repro:
Create a DataGridView with multiple data cells

[vladimir-krestov]

Original Bug 1159872
Related to #2701