Author: Petr Škoda
MDL-44824 add missing subplugin type names
http://git.moodle.org/gw?p=moodle.git;a=commit;h=c7e5683a7e1593eb31b248bc6bfc1dfbd76d8260
http://github.com/moodle/moodle/commit/c7e5683a7e1593eb31b248bc6bfc1dfbd76d8260
+ 2.7 en [subplugintype_logstore,tool_log]
+ 2.7 en [subplugintype_logstore_plural,tool_log]