Add PPI::Test, home of cmp_document()
Add PPI::Test::Standard, home of standard pragmas for test files
remove inline tests ; convert to using t::lib::PPI::Test and t::lib::PPI::Test::Standard
tabs to four spaces
add FUNC attribute
rename modules under t/lib
rename PPI::Test::Standard to PPI::Test::pragmas
Documentation, side-by-side dump upon error, allow array with cmp_element.