fix all errors should be reported in tests
extract student data array to data class
add STUDENT ID Test case
add NSN test case
delete old test cases
fix error reporting all
add SURNAME test case
fix undefined $school variable in validators 2, 3 and 4
add FIRSTNAME test case
fix validator 4 and 5 calling incorrect validate method
fix FIRSTNAME test case method names
add gender test case
add DOB test case
add FIRST ATTENDANCE test case
add FIRST SCHOOLING test case
add Ethnicity test case
add duplication test to ethnicity test case
add IWI test case
add ORS AND SECTION 9 test case
Merge pull request #1 from linc-ed/rewrite_tests

Rewrite tests