facade for regular used Go wrapper calls for specific Filesystem operations or info functions

extracted from an older pandora box of such packages at abhishekkr/gol

• CwdBasename() string

• PathExists(path string) bool

• PathLs(basePath string) (map[int]string, error)

• PathLsN(basePath string, depth int) (map[int]string, error)

• PathLsType(basePath string, filetypes []string) (map[int]string, error)

• PathLsNType(basePath string, depth int, filetypes []string) (map[int]string, error)

• PathLsTypeNot(basePath string, filetypes []string) (map[int]string, error)

• PathLsNTypeNot(basePath string, depth int, filetypes []string) (map[int]string, error)

• MkDirWithPermission(dirpath string, mode os.FileMode) error

• MkDir(dirpath string) error

• MoveFile(src, dst string) error

• CopyFile(src, dst string) error

• CreateBinaryFile(filename string, blob []byte) error

• AppendBinaryToFile(filename string, blob []byte) error

• AppendToFile(filename, txt string) error

• ReadBinaryFile(filepath string) ([]byte, error)

• ReadFileBuffer(filepath string) (*bytes.Buffer, error)