Update DwarFS v0.12.0
Add uruntime dwarfs-lite build (DwarFS-only no dwarfsck, mkdwarfs)
Add env var DWARFS_PRELOAD_ALL=1 Enable preloading of all blocks from the DwarFS file system
Add env var DWARFS_ANALYSIS_FILE=/path A file for profiling open files when launching the application for DwarFS
Add env var DWARFS_USE_MMAP=1 Use mmap for allocating blocks for DwarFS
Enable preload_category=hotness for DwarFS
Update README