Move 'SecurityPermission' data to seed data files

HumanresDemoData.xml file contains the following data:

<SecurityPermission description="Employee can check the status of his requests and trainings assigned to him with this permission." permissionId="EMPLOYEE_VIEW"/>

SecurityGroupDemoData.xml file contains the following data:

<SecurityPermission description="Permission to access the Stock OFBiz Manager Applications." permissionId="OFBTOOLS_VIEW"/>

Above mentioned data is seed data, so we should remove it from demo data files and move it to seed data files.