Modularize into CoreComment and CommentSpaceAllocators [Still buggy\!]
Modified to use less code. Only need two kinds of CSAs since we now use four corners alignment.
Modified to support animations
Fixed running overtime. Still some slight behavoir differences with the old CSA
Support borders
Added support for bili's linear-movement comments. Better support for acfun high level motion comments
Remerging to normal compile process. Finalizing before merge to master
Incremental update to development branch with compiled Scripting
Fixed bug with new CSA. Preparing for final merge into `master`.