added a UI.design-pedia-dynamic option to control  in the Design Window whether or not the design detail pedia page will be dynamically updated as the design name is edited (causes lag on some machines).  No current options page UI widget; can be changed on command line or by editing config

git-svn-id: svn://svn.code.sf.net/p/freeorion/code/trunk@7774 dbd5520b-6a0a-0410-a553-f54834df5b05