dice Add support for command `HKEYS`

Add support for the HKEYS command in DiceDB similar to the HKEYS command in Redis. Please refer to the following commit in Redis to understand the implementation specifics - source.

Write unit and integration tests for the command referring to the tests written in the Redis codebase 7.2.5. For integration tests, you can refer to the tests folder. Note: they have used TCL for the test suite, and we need to port that to our way of writing integration tests using the relevant helper methods. Please refer to our tests directory.

For the command, benchmark the code and measure the time taken and memory allocs using benchmem and try to keep them to the bare minimum.

Sep 20 '24 17:09 arpitbbhayani

Can I take this issue? @arpitbbhayani @JyotinderSingh

Sep 20 '24 18:09 ayushsatyam146

@arpitbbhayani Can I pick this issue?

Sep 20 '24 18:09 swarajrb7

@swarajrb7 assigned, thanks for contributing.

Sep 20 '24 18:09 lucifercr07

Can I work on this issue? @arpitbbhayani

Sep 24 '24 12:09 RishabhC-137

Have completed the working of the command. Currently working on writing integration_test.

Sep 25 '24 05:09 swarajrb7

Update: Will create the PR in couple days.

Sep 29 '24 18:09 swarajrb7