It corrupts environment on macOS runner because it uses shell, not docker-executor,
and makes all tree read-only for a non-root user.
+ Replace examples with real files in example README.md
This commit fixes an issue where paths on Windows are case insensitive, for instance when setting the build folder its name would be converted to lowercase.
The culprit is our realpath() function, that was calling os.path.normcase() internally, since we are removing that call it makes sense to just remove the function entirely and call os.path.realpath() wherever necessary.
Closes https://github.com/espressif/esp-idf/issues/10282
