disk_lru_cache 0.0.1

Disk lru cache for flutter.

[0.0.1] - Basic usage.

• LRU Map
• Store One CacheEntry with multiple files by using CacheEditor
• Get CacheSnapshot and open streams directly from CacheEntry
• Using a key to remove from cache
• A record file to store all operation info,including 'DIRTY','CLEAN','REMOVE','READ'
• Get total size from cache
• When cache.size > caches.maxSize , auto trim to size.