Added hoomd script test for charge.pppm
Added hoomd script test for charge.pppm

git-svn-id: ec9b07885974bb3173b21955f95968a785f5a7c2@3748 fa922fa7-2fde-0310-acd8-f43f465a7996

joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue