[PATCH 01/10] cmake: ignore files generated by CMake as run in Visual Studio

From: Johannes Schindelin <redacted>

As of recent Visual Studio versions, CMake support is built-in:
https://docs.microsoft.com/en-us/cpp/build/cmake-projects-in-visual-studio?view=vs-2019

All that needs to be done is to open the worktree as a folder, and
Visual Studio will find the `CMakeLists.txt` file and automatically
generate the project files.

Let's ignore the entirety of those generated files.

Helped-by: Đoàn Trần Công Danh [off-list ref]
Signed-off-by: Johannes Schindelin <redacted>
---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index d0f692a355..6521f3cf22 100644
--- a/.gitignore
+++ b/.gitignore

@@ -241,3 +241,4 @@ Release/
 /git.VC.VC.opendb
 /git.VC.db
 *.dSYM
+/contrib/buildsystems/out

-- 
gitgitgadget