implement first EVEX instructions - VADDPS/PD/SS/SD

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@11822 6c8e4198-a580-4521-a02f-c9ae86df1db9
add new file

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@11823 6c8e4198-a580-4521-a02f-c9ae86df1db9