Small code improvements and lombok more usage.

[ProfliX]

• Yaml class

  • :heavy_check_mark: Removed unnecessary 'toString()' call.
  • :heavy_check_mark: More usage of Lombok's val and var
  • :heavy_check_mark: Optimized imports

• Json class

  • :heavy_check_mark: Raw use of parameterized class 'Map' transformed to 'Map<?,?>'
  • :heavy_check_mark: More usage of Lombok's val and var
  • :heavy_check_mark: Optimized imports

• Config class

  • :heavy_check_mark: Optimized imports

• :zap: Util improvements

  • :octocat: ClassWrapper class
  • :heavy_check_mark: Added usage of Lombok's val
  • :octocat: FastStringWriter class
  • :heavy_check_mark: Not annotated parameter overrides @NotNull parameter > FIXED
  • :octocat: FileUtils class
  • :heavy_check_mark: More usage of Lombok's val and var
  • :octocat: JsonUtils class
  • :heavy_check_mark: More usage of Lombok's val and var
  • :octocat: LagCatcher class
  • :heavy_check_mark: More usage of Lombok's val and var
  • :heavy_check_mark: Code optimization
  • :octocat: YamlUtils class
  • :heavy_check_mark: Added usage of Lombok's val

[KotlinFactory]

Thanks, merged