fix: add pool id to xyk pool created/destroyed events

[enthusiastmartin]

No description provided.

[jak-pan]

@enthusiastmartin can we also add pair_account to the events?

[mckrava]

But this commit fix: add pool id to xyk pool created/destroyed events adds shared_token_id but not pool id :)

[codecov]

Codecov Report

Merging #300 (dba22ee) into master (394b20e) will increase coverage by 0.09%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #300      +/-   ##
==========================================
+ Coverage   15.27%   15.37%   +0.09%     
==========================================
  Files          20       20              
  Lines        6776     6784       +8     
==========================================
+ Hits         1035     1043       +8     
  Misses       5741     5741              

Impacted Files	Coverage Δ
pallets/xyk/src/lib.rs	84.43% <100.00%> (+0.42%)	⬆️

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