added new antlr4 based parser, defined grammer, generated classes, integration into existing search mechanism
extended parser grammar to allow escaped quot,

 also added test to ensure that behavior
[refactoring] replaced singular transform methods by a generic method
Merge pull request #98 from davidmoebius/refactor_UserConverter

[refactoring] replaced singular transform methods by a generic method
Added some characters to the grammar, also added java doc and generics
added copyright, removed cast and adjusted javadoc
Merge pull request #97 from osiam/osgn-254-parser

Osgn 254 parser
[enhancement] renamed InternalIdSkeleton to ResourceEntity
[enhancement] removed unnecessary update helper classes
[task] added updater controls
[enhancement] removed unnecessary tests update helper classes
[enhancement] removed provisioning type hierarchy and interfaces
[cleanup] organized imports
[enhancement] started to remove dao type hierarchy
[task] implemented create() and getById()
[cleanup] removed now unneeded test
[task] added getByAttribute() method and added some javadoc
[fix] added exception handling for unknown ids
[fix] removed exception handling. it's done in the provisioning layer.
[fix] fixed tests to reflect latest changes