ClientFileFinder recursive glob ** behaves differently

[Max Vogler]

Compared to FileFinder, ClientFileFinder's recursive glob ** shows two regressions:

1. ** does not match the current directory, only subdirectories. this means that /foo/** does not match /foo/bar with CilentFileFinder, only /foo/subfolder/bar.
   • Workaround: Specify two path expressions, /foo/* and /foo/**.
2. **suffix fails in ClientFileFinder with malformed recursive component. This means that /foo/**.ext fails in ClientFileFinder
   • Workaround: Enclose recursive glob in slashes. Use /foo/**/*.ext and /foo/*.ext.