feat(jellyfish-api-core): add token split testing

[surangap]

What this PR does / why we need it:

Which issue(s) does this PR fixes?:

Fixes #1527 and DeFiCh/ain#1243

Additional comments?:

[jingyi2811]

Should we change v0/oracles/splits/ to v0/tokens/splits/ , I feel we should. @surangap Can you advise C++ side on this?

[surangap]

Anyway, don't spend too long time on this PR anymore as this is not urgent anymore because splitting already happened. This PR is important again only when we have the next split.

you are only seeing one use of the tests. but once these tests are written and included in the CI testing, these tests run over each and every future change of defid/jellyfish. Thus make sure the core functionality is intact over the changes. That's why it's important to get the tests right at the first place.

[surangap]

Also, you also need to read again.

If this is true => split happens at a single designated block splitBlock1 Then, something wrong with this PR

I need to change the code if you confirm that is true

https://github.com/DeFiCh/ain/blob/27e9965efd4b3b6d4beffefeb08ef902a6a37c49/src/validation.cpp#L4387
hope this helps.

[jingyi2811]

#834

Apply the same too

Also, you also need to read again.
If this is true => split happens at a single designated block splitBlock1 Then, something wrong with this PR
I need to change the code if you confirm that is true

https://github.com/DeFiCh/ain/blob/27e9965efd4b3b6d4beffefeb08ef902a6a37c49/src/validation.cpp#L4387 hope this helps.

In feature_token_split.py, every call of v0/oracles/splits/, they generate 2 blocks. I am unsure is there a problem there

[jingyi2811]

Anyway, don't spend too long time on this PR anymore as this is not urgent anymore because splitting already happened. This PR is important again only when we have the next split.

you are only seeing one use of the tests. but once these tests are written and included in the CI testing, these tests run over each and every future change of defid/jellyfish. Thus make sure the core functionality is intact over the changes. That's why it's important to get the tests right at the first place.

I assume there is no other more important task

[jingyi2811]

#834

Apply the same too

Also, you also need to read again.
If this is true => split happens at a single designated block splitBlock1 Then, something wrong with this PR
I need to change the code if you confirm that is true

https://github.com/DeFiCh/ain/blob/27e9965efd4b3b6d4beffefeb08ef902a6a37c49/src/validation.cpp#L4387 hope this helps.

In feature_token_split.py, every call of v0/oracles/splits/, generate 2 blocks. I am unsure is there a problem there

I guess is 2 blocks right?

[fuxingloh]

This is gonna be hard to index on whale-api due to non-deterministic events especially getting the current txid to map to PoolPair. I guess to make things simple we can just remove those values (txid, tokenid, poolpairid).

Otherwise, we could also; might have to - build a DEX indexer away from the main whale-api to protect it from regression 😿

/cc @canonbrother @eli-lim

Related to #1532 regression