tiles.rc: impl TileSpec class for reading tile specification

and rewrite MakeTiles to use the TileSpec class

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@727 d9718cc8-9f43-0410-858b-315f434eb58c
tiles.rc: revise syntax of tile specification

changed my mind on tile specification syntax

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@728 d9718cc8-9f43-0410-858b-315f434eb58c
tile animation: copy animation information from Java source code to tiles.dat

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@729 d9718cc8-9f43-0410-858b-315f434eb58c