chore: improve mocks lib

[dadamu]

This PR merges test_utils and mocks into a folder, then renaming to mack_apps and mock_queriers.
Besides, it also improves x/posts and x/reports to have MockQueries struct collecting all mock functions as other modules.

[codecov]

Codecov Report

Merging #30 (ae0dbda) into main (168ddc3) will increase coverage by 0.11%.
The diff coverage is 99.29%.

@@            Coverage Diff             @@
##             main      #30      +/-   ##
==========================================
+ Coverage   90.94%   91.06%   +0.11%     
==========================================
  Files          27       27              
  Lines        2276     2282       +6     
==========================================
+ Hits         2070     2078       +8     
+ Misses        206      204       -2     

Impacted Files	Coverage Δ
packages/bindings-test/src/chain_communication.rs	0.00% <ø> (ø)
packages/bindings/src/profiles/querier.rs	92.33% <ø> (ø)
packages/bindings/src/reactions/querier.rs	65.71% <ø> (ø)
packages/bindings/src/relationships/querier.rs	89.36% <ø> (ø)
packages/bindings/src/subspaces/mocks.rs	100.00% <ø> (ø)
packages/bindings/src/subspaces/querier.rs	91.70% <ø> (ø)
packages/bindings/src/posts/mocks.rs	99.00% <98.79%> (ø)
packages/bindings/src/mocks/mock_queriers.rs	98.14% <100.00%> (ø)
packages/bindings/src/posts/querier.rs	90.86% <100.00%> (+0.09%)	⬆️
packages/bindings/src/reports/mocks.rs	100.00% <100.00%> (ø)
... and 4 more

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[leobragaz]

Nice improvements 👍

[manu0466]

Looks goot me! Nice work 🚀
What do you think of removing the mocks feature and build the mocks just when the target is not wasm32?
I see at the moment that the mocks module is compiled only when the mocks feature is enabled and not compiling for wasm32 I think we can safely remove the mocks feature.

[dadamu]

@manu0466 Great thought, that makes more sense.

[manu0466]

Nice work!