* replace recursive-copy with own implementation
* update yarn.lock
* do not filter out not directories
* do not fail if folder already exists
* replace `\` by `/` when sending pathes to filter
* use fs-extra only in tests
* investigate and test recursive-copy npm module
* improve test by creating fixtures programmatically
* remove recursive-copy npm module test
* add recursive-copy to bench
* add bench:recursive-copy script
* fix Sema import in recursive-copy.ts
* small improvements
