chimera: setInodeAttributes have to throw FileNotFoundChimeraException

Throw FileNotFoundChimeraException on attempt to update attributes of non existing inode.
Enable existing but disabled test cases to verify this functionality.

Allow size update only for regular files. Introduces two new exceptions:
IsDirChimeraException and InvalidArgumentChimeraException which corresponds
do POSIX  EISDIR or EINVAL and error codes.

Acked-by: Gerd Behrmann
Target: master
Require-book: no
Require-notes: no