Configure CMake to install the re2Config "export".

Fixes #201.

Change-Id: I66d948c197c3c8875a72a9547efb14790b5e7bb1
Reviewed-on: https://code-review.googlesource.com/c/re2/+/40030
Reviewed-by: Paul Wankadia <junyer@google.com>
1 file changed