Add Resoure to LDAP schema

- main.java will be generate also resources
- LdapConnector/Impl has new methods for work with resources
- EventProcessorImpl has new strategy to work with resources messages (from log)

Other changes which need to be done before starting LDAP:
- add resource and his attributes to perun.schema file

This must be add to perun.schema:
----------------------------------------------
attributetype ( 1.3.6.1.4.1.8057.2.80.16
    NAME 'perunResourceId'
    DESC 'Unique resource identifier managed by Perun'
    EQUALITY caseIgnoreMatch
    SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
    SINGLE-VALUE
    )

attributetype ( 1.3.6.1.4.1.8057.2.80.17
    NAME 'perunFacilityId'
    DESC 'Unique facilityId identifier managed by Perun'
    EQUALITY caseIgnoreMatch
    SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
    SINGLE-VALUE
    )

attributetype ( 1.3.6.1.4.1.8057.2.80.18
    NAME 'assignedGroupId'
    DESC 'Identifier of group which is assigned to this resource'
    EQUALITY caseIgnoreMatch
    SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
    )

objectclass ( 1.3.6.1.4.1.8057.2.80.15
    NAME 'perunResource'
    DESC 'Resource managed by Perun'
    SUP groupOfUniqueNames
    STRUCTURAL
    MUST (
         perunResourceId $
         perunVoId $
         perunFacilityId
         )
    MAY (
        assignedGroupId
        )
    )
----------------------------------------------