chore(repo): add gitignore for system and editor files

- Ignore Linux, macOS and Windows system files
- Ignore IDE config for JetBrains, VS Code and Eclipse
- Omit bin/ and Icon so real source paths are not ignored

.gitignore

@@ -0,0 +1,80 @@
+# =============================================================================
+# Operating system files
+# =============================================================================
+
+## Linux
+*~
+.directory
+.Trash-*
+.fuse_hidden*
+.nfs*
+
+## macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+._*
+.Spotlight-V100
+.Trashes
+.fseventsd
+.DocumentRevisions-V100
+.TemporaryItems
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+## Windows
+Thumbs.db
+ehthumbs.db
+Desktop.ini
+$RECYCLE.BIN/
+*.lnk
+*.stackdump
+
+# =============================================================================
+# IDEs and editors
+# =============================================================================
+
+## JetBrains — IntelliJ IDEA, WebStorm, GoLand, RustRover, PyCharm, etc.
+.idea/
+*.iml
+*.ipr
+*.iws
+out/
+
+## Visual Studio Code
+.vscode/
+*.code-workspace
+
+## Eclipse
+.settings/
+.project
+.classpath
+.metadata/
+*.launch
+
+## NetBeans
+nbproject/private/
+nbbuild/
+dist/
+nbdist/
+.nb-gradle/
+
+## Vim
+*.swp
+*.swo
+*.swn
+Session.vim
+.vimrc.local
+
+## Emacs
+\#*\#
+.\#*
+
+## Sublime Text
+*.sublime-workspace
+*.sublime-project
+
+## Other editors
+.history/
+.atom/
+.zed/