Add suggestion search to zimsearch.

[mgautierfr]

For a long time suggestion was implemented at kiwix-tools level as it was a feature of libkiwix.
We recently integrate the suggestion feature in libzim, so zimsearch should provide a suggestion search.

[kelson42]

@mgautierfr Does it still make sense to keep kiwix-search binary?

[mgautierfr]

Probably not.

[anmol20112000]

@mgautierfr plzz assign this issue to me. i love to contribute on this.

[kelson42]

You should basically take the code in kiwix-tools kiwix-search and copy/adapt it here.

[kelson42]

@anmol20112000 Any PR in view?

[anmol20112000]

@kelson42 i stuck in this....just want some more time...hope you understand...