Optimization of BITFIELD args generation

[ianpojman]

Feature Request

Is your feature request related to a problem? Please describe

When measuring code that uses BITFIELD intensively in profiler, I saw that a non-trivial amount of time was spent creating Redis commands (more so than actually dispatching).

I replaced String.format w/ String concatenation and profiled the app under high load and it basically became insignificant

Describe the solution you'd like

I replaced my usage of lettuce 5.1.7.RELEASE with my 6.0 snapshot with these changes
ianpojman#1

and per the profiler I saw I reasonable improvement in time spent in AbstractRedisAsyncCommands.bitfield() runtime.

Describe alternatives you've considered

Teachability, Documentation, Adoption, Migration Strategy

[mp911de]

Thanks a lot for having a look. Do you want to submit a pull request to fix that issue?

[ianpojman]

#1178