extract small_map as separate utility crate

[countradooku]

This Pull Request closes #4184 .

It changes the following:

• extract small_map as separate utility crate

[countradooku]

@jedel1043

[countradooku]

@jedel1043 I think I did something wrong

[countradooku]

@jedel1043 i added docs here

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 50.19%. Comparing base (6ddc2b4) to head (5cdb39b). Report is 464 commits behind head on main.

Files with missing lines	Patch %	Lines
utils/small_btree/src/lib.rs	0.00%	3 Missing :warning:
utils/small_btree/src/entry.rs	0.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4214      +/-   ##
==========================================
+ Coverage   47.24%   50.19%   +2.95%     
==========================================
  Files         476      499      +23     
  Lines       46892    50165    +3273     
==========================================
+ Hits        22154    25181    +3027     
- Misses      24738    24984     +246     

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[countradooku]

@Razican i commited your suggestions

[oriongonza]

your git history doesn't look right anymore, can you run git rebase -i on it?

[HalidOdat]

Hi @radudiaconu0 :wave:, when you have a moment, could you please implement the suggested changes and rename it to small_btree? That way, we’ll be ready to merge it :smile:

[countradooku]

Hi @radudiaconu0 :wave:, when you have a moment, could you please implement the suggested changes and rename it to small_btree? That way, we’ll be ready to merge it :smile:

Sure. I was very busy lately with my projects

[countradooku]

@HalidOdat i renamed it. you can merge it

[jedel1043]

Rename SmallMap to SmallBTreeMap?

[countradooku]

Rename SmallMap to SmallBTreeMap?

@jedel1043 done

[jedel1043]

Very nice! Everything looks correct, this just needs some conflict resolutions and we can merge