Add initial project structure with configuration and documentation files

.gitignore

@@ -0,0 +1,50 @@
+# PlatformIO
+.pio/
+.pioenvs/
+.piolibdeps/
+.pio/build/
+.pio/libdeps/
+
+# VS Code
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
+.vscode/settings.json
+
+# macOS
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Build artifacts
+*.o
+*.elf
+*.bin
+*.hex
+*.map
+
+# Temporary files
+*~
+*.tmp
+*.bak
+*.swp
+
+# Logs
+*.log
+
+# IDE files
+*.sublime-project
+*.sublime-workspace
+
+# CLion
+.idea/
+cmake-build-*/
+
+# Other
+*.pyc
+__pycache__/