peview: added signature verification

git-svn-id: http://svn.code.sf.net/p/processhacker/code/2.x/trunk@5571 21ef857c-d57f-4fe0-8362-d861dc6d29cd
use PWCHAR instead of PWSTR for strings that are not null-terminated

git-svn-id: http://svn.code.sf.net/p/processhacker/code/2.x/trunk@5572 21ef857c-d57f-4fe0-8362-d861dc6d29cd
peview: don't use PH_VERIFY_PREVENT_NETWORK_ACCESS when viewing certificate

git-svn-id: http://svn.code.sf.net/p/processhacker/code/2.x/trunk@5573 21ef857c-d57f-4fe0-8362-d861dc6d29cd
peview: fixed label widths

git-svn-id: http://svn.code.sf.net/p/processhacker/code/2.x/trunk@5574 21ef857c-d57f-4fe0-8362-d861dc6d29cd