Add some functions to manipulate paths and filenames to CommonTools
Add some functions to manipulate paths and filenames to CommonTools


Former-commit-id: 3a01311c28dc68d415ab1c1ef81f5393977cdd70
kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework,kmuzalewska/j-pet-framework