Entities cna have a "__position_aware" flag to tell the map code to store...

Entities cna have a "__position_aware" flag to tell the map code to store their position in x/y properties


git-svn-id: http://svn.net-core.org/repos/t-engine4@2092 51575b47-30f0-44d4-a5cc-537603b46e54