added: support for lightpack devices (thanks Timur Sattarov)

git-svn-id: http://boblight.googlecode.com/svn/trunk@473 c8956a1e-8086-11de-bc80-f7d40095c7a4
added: use an std::map for fast lightname->lightnr conversion, instead of a linear search loop, this increases performance when a large number of lights is used

git-svn-id: http://boblight.googlecode.com/svn/trunk@474 c8956a1e-8086-11de-bc80-f7d40095c7a4