Change include style from "" to <>.
Change include style from "" to <>.

Update the auxpow_tests.cpp file, so that #include's are referenced with
<> instead of "".  This makes it consistent with an upstream change that
was done some time ago.

namecoin/namecore,pataquets/namecoin-core,namecoin/namecoin-core,namecoin/namecore,domob1812/namecore,namecoin/namecore,pataquets/namecoin-core,domob1812/namecore,namecoin/namecore,namecoin/namecoin-core,domob1812/namecore,namecoin/namecoin-core,pataquets/namecoin-core,pataquets/namecoin-core,domob1812/namecore,pataquets/namecoin-core,domob1812/namecore,namecoin/namecoin-core,pataquets/namecoin-core,namecoin/namecore,domob1812/namecore,namecoin/namecoin-core,namecoin/namecore,namecoin/namecoin-core