137 onboarding pallet get houses with onboarded status

[letodunc]

A new function has been added and exposed in the Onboarding pallet.
It allows the Bidding pallet to retrieve asset with onboarded status without using the acual storage getter houses() that requires arguments to get data.
We should have needed to call houses() with some arguments before filtering the assets by status. Here a call to get_onboaded_houses() gives directly assets with onboarded status.
The tests has been updated accordingly.

[codecov-commenter]

Codecov Report

Merging #138 (b624fc0) into main (1ac6d20) will increase coverage by 1.05%.
The diff coverage is 97.01%.

@@            Coverage Diff             @@
##             main     #138      +/-   ##
==========================================
+ Coverage   69.32%   70.38%   +1.05%     
==========================================
  Files          41       41              
  Lines        3097     3211     +114     
==========================================
+ Hits         2147     2260     +113     
- Misses        950      951       +1     

Impacted Files	Coverage Δ
pallets/housing_fund/src/mock.rs	100.00% <ø> (ø)
pallets/onboarding/src/mock.rs	81.25% <0.00%> (-5.42%)	⬇️
pallets/onboarding/src/lib.rs	78.14% <85.00%> (+0.58%)	⬆️
pallets/housing_fund/src/functions.rs	95.00% <100.00%> (+0.88%)	⬆️
pallets/housing_fund/src/lib.rs	92.36% <100.00%> (ø)
pallets/housing_fund/src/structs.rs	100.00% <100.00%> (ø)
pallets/housing_fund/src/tests.rs	100.00% <100.00%> (ø)
pallets/onboarding/src/functions.rs	87.50% <100.00%> (+0.65%)	⬆️
pallets/onboarding/src/tests.rs	100.00% <100.00%> (ø)
pallets/onboarding/src/types.rs	100.00% <100.00%> (ø)

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[ilhanu]

Looks good!