Registered external links

FastoNoSQL have external links on next sites:

• Redis
• LMDB
• SSDB
• Memcached
• LevelDB
• RocksDB
• UnQLite
• UpscaleDB
• ForestDB
• Pika 360

Issues for databases which didn't have external link on our solution have low priority.
Note: we can add support for other NoSQL databases (key/value), please create issue and we will do it!