Closes #222 

* Support username in AUTH command

* Fix order

* Use username as first arg

* Improve AUTH command

* Provide test

* Remove unused By case class

Signed-off-by: NAleksandar Novakovic <anovakovic01@gmail.com>

* Reorganize RespValue

* Add type to stringEncode

* Rename stringEncode to encodeString

* Reduce State's visibility

* Move ArrayValues up

* Consolidate outputs

* Remove override

* Move out parameter from receive loop

* Emit chunks

* Reduce effects nesting

* Remove sinks

* Upgrade sbt

* Benchmark throughput only

* Record baseline

* Draft transducer

* Move alternative executor

* Fix sources

* Reorganize module

* Rename transform to feed

* Unify matches

* Extract constant

* Extend product with serializable

* Record benchmark

* Disable ugly signature

* Fix equality check

* Narrow the import

* Specialize number parsing

* Remove ugly signatures

* Keep decoding

* Ignore dump/restore test

* Handle empty arrays

* Remove unnecessary guard

* Improve formatting

* Handle null arrays

* Create a null array constant

* Fix format

* Import serializable

* Drop todo

* Group vals

* Specialize long reading

* Simplify signature

* Call asString

* Use chunk builder

* Remove benchmark log

* Remove set benchmark log

* Add all of the commands except xInfo
Signed-off-by: NAleksandar Novakovic <anovakovic01@gmail.com>

* Fix XRead and XReadGroup inputs
Signed-off-by: NAleksandar Novakovic <anovakovic01@gmail.com>

* Fix some of the commands outputs
Signed-off-by: NAleksandar Novakovic <anovakovic01@gmail.com>

* Fix some of the commands inputs
Signed-off-by: NAleksandar Novakovic <anovakovic01@gmail.com>

* Fix import order
Signed-off-by: NAleksandar Novakovic <anovakovic01@gmail.com>

* Remove unnecessary case classes
Signed-off-by: NAleksandar Novakovic <anovakovic01@gmail.com>

* Fix Scan command output

Change Scan command output from Option[Unit] to Boolean.
Signed-off-by: NAleksandar Novakovic <anovakovic01@gmail.com>

* Update pattern matching of chunk to seq
Signed-off-by: NAleksandar Novakovic <anovakovic01@gmail.com>

* Remove syntax classes

* Convert command to abstract class

* Port connection API

* Remove unused transaction API

* Port HLL API

* Port strings API

* Port geo API

* Port lists API

* Port hashes API

* Port keys API

* Port sets API

* Port sorted sets API

* Fix geo spec

* Fix hash spec

* Fix HLL spec

* Fix keys spec

* Fix list spec

* Fix sets spec

* Fix strings spec

* Fix sorted sets spec

* Make command class

* Fix reflective access in connections api

* Fix reflective access in geo api

* Fix reflective access in HLL api

* Fix reflective access in hashes api

* Fix reflective access in keys api

* Fix reflective access in lists api

* Fix reflective access in sets api

* Fix reflective access in sorted sets api

* Fix reflective access in strings api

* Reformat the sources

* Bump zio

* Add RedisCommand.apply

* Reduce companions visibility