Reboot Keva config

[tuhuynh27]

Fixes #81

Ref: https://redis.io/topics/config

Parameters:

Option                          Description
------                          -----------
--port <Integer>                Accept connections on the specified port (default: 6379)
--save <Boolean>                Enable save the DB to disk (default: true)
--appendonly <Boolean>          Enable append-only-file (default: false)
--appendfsync <Integer>         Define append-only fsync in ms (default: 1000)
--dir <String>                  Define working directory (default: './')
--requirepass <String>          Authenticate password (default: '' - no password)

[tuhuynh27]

@axblueblader Do you have any idea on this issue?

./gradlew :app:run --args="--port 1234 --appendonly true" -> Didn't work, expected got true value
./gradlew :app:run --args="--port 1234 --appendonly false" -> Worked, got false value
./gradlew :app:run --args="--port 1234 --appendonly" -> Worked, got true value

This issue happened before this PR

[axblueblader]

@tuhuynh27 i think it might be a bug i made here:

keva/config/src/main/java/com/keva/config/util/ArgsHolder.java

Line 22 in 93a0093

return "true".equalsIgnoreCase(name) ? "true" : "false";

should have been
return "true".equalsIgnoreCase(values.get(name))

[axblueblader]

relating to config stuff, also there's a 'hidden' one for file path of config file

keva/config/src/main/java/com/keva/config/ConfigLoader.java

Line 22 in 93a0093

val configFilePath = config.getArgVal("f");