Added util functions to produce JPA/LDAP configuration builders.

Signed-off-by: girirajSharma <giriraj.sharma27@gmail.com>
Instantiated IdentityManager and implemented basic X509Certificate CRUD.
Added author/license headers and resolved package/code-formatting
issues.

Signed-off-by: girirajSharma <giriraj.sharma27@gmail.com>
Implemented DTOs for X509Certificatev1 creation request and response.

Signed-off-by: girirajSharma <giriraj.sharma27@gmail.com>
Removed trailing spaces from *.java files, configured webapp directory
according to Angular UI module, implemented a demo angular UI to test
angular js, added angular bootstrap js and css libraries, configured h2
as in memory database for picketlink cert-mgmt.
Merge pull request #2 from girirajsharma/master

Implemented Basic X509 Certificate CRUD.