* Modify ticketer and ccache logic
* ticketer now update existing ccache if KRB5CCNAME is specified
* ticketConverter now convert all TGS within the Kirbi or provided Ccache
* Fix a bug during the conversion from ccache to kirbi that does not correctly preserve ticket flags
* Update kirbi test cases. Improve Kirbi to Ccache conversion.
- Parsing v3 and v4 ccache files to check #1106 (and not support for v1 and v2)
- Parsing creds from kirbi to check #1254
- Checking #1166 parseFile function