add initial gitignore

.gitignore

@@ -0,0 +1,41 @@
+
+### CMake ###
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+
+### CMake Patch ###
+CMakeUserPresets.json
+
+# External projects
+*-prefix/
+
+### VisualStudioCode ###
+.vscode/*
+#!.vscode/settings.json
+#!.vscode/tasks.json
+#!.vscode/launch.json
+#!.vscode/extensions.json
+#!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+.ionide
+
+# CMake files generated by VSCode
+.cache/*