Initial Release and request for feedback

1. Redis compatible store with 130 redis commands implemented . Supports RESP2 protocol.
2. Support for Memcached protocol.
3. Asynchronous point-in-time snapshotting operations. No forks. Predictable memory usage.
4. Integrated Lua 5.4 with native integer support.
5. Highly efficient data-structures, reaching x3 memory efficiency compared to Redis.
6. Support for ZSET, HSET, LIST, SETS and STRING family types.

Consistent memory usage together with robust performance makes Dragonfly an excellent alternative to Memcached and REDIS servers.

What's Changed

• Fixit by @odedponcz in https://github.com/dragonflydb/dragonfly/pull/39
• Fixit by @odedponcz in https://github.com/dragonflydb/dragonfly/pull/40
• Update README: add benchmarks by @romange in https://github.com/dragonflydb/dragonfly/pull/43
• Add more benchmarks to README by @romange in https://github.com/dragonflydb/dragonfly/pull/44
• Add license by @odedponcz in https://github.com/dragonflydb/dragonfly/pull/45
• Some clean-ups in rdb_save code. Add verbosity printings for CI build by @romange in https://github.com/dragonflydb/dragonfly/pull/47

Full Changelog: https://github.com/dragonflydb/dragonfly/commits/v0.1.0