better mis example

better misc example

better misc example

fix misc example for ldap backend usage

better example for ldap backend

adding misc

better code example

adding small example for backend ldap

small debug script for class LdapCherry

change backend key name in attributes + methods ...

* adding get_backends
* adding get_selfattributes (attributes users can change themselves)
* adding unit tests
* rename backend-attributes -> bakends (for homogeneity with role.yml)

begin attributes handling manipulation

add methods for class Roles + unit tests ...

* adding get_allroles (list all available roles)
* adding get_display_name (get display name of a role)
* add various unit tests

more complex unit test for get_roles

misc role

implementing nesting roles