Move Symbol.species and AnnexB tests to new subfolders

test/annexB/Date/prototype/getYear/B.2.4.js

test/annexB/Date/prototype/getYear/B.2.4.propertyCheck.js

test/annexB/Date/prototype/setYear/B.2.5.js

test/annexB/Date/prototype/setYear/B.2.5.propertyCheck.js

test/annexB/Date/prototype/toGMTString/B.2.6.js

.../annexB/Date/prototype/toGMTString/B.2.6.propertyCheck.js

test/annexB/Object/prototype/__proto__/B.2.2.1.1.js

test/annexB/Object/prototype/__proto__/B.2.2.1.2.js

test/annexB/RegExp/RegExp-control-escape-russian-letter.js

test/annexB/RegExp/RegExp-decimal-escape-class-range.js

test/annexB/RegExp/RegExp-decimal-escape-not-capturing.js

test/annexB/RegExp/RegExp-leading-escape-BMP.js

test/annexB/RegExp/RegExp-leading-escape.js

test/annexB/RegExp/RegExp-trailing-escape-BMP.js

test/annexB/RegExp/RegExp-trailing-escape.js

...xB/RegExp/prototype/compile/B.RegExp.prototype.compile.js

test/annexB/String/prototype/anchor/B.2.3.2.js

test/annexB/String/prototype/big/B.2.3.3.js

test/annexB/String/prototype/blink/B.2.3.4.js

test/annexB/String/prototype/bold/B.2.3.5.js