Setup integration tests and CI (#11)

- Setup integration tests following pattern suggested in cosmos-sdk docs:
  https://docs.cosmos.network/v0.50/build/building-modules/testing#integration-tests
- Add tests for laconic modules query services
- Setup a CI workflow to run the integration tests

Reviewed-on: deep-stack/laconic2d#11
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>

app/app.go

@@ -79,7 +79,6 @@ type LaconicApp struct {
 	AuctionKeeper  *auctionkeeper.Keeper // (Use * as per ProvideModule implementation)
 	BondKeeper     *bondkeeper.Keeper
 	RegistryKeeper registrykeeper.Keeper
-	// RegistryRecordKeeper registrykeeper.RecordKeeper
 
 	// simulation manager
 	sm *module.SimulationManager
@@ -141,7 +140,6 @@ func NewLaconicApp(
 		&app.ConsensusParamsKeeper,
 		&app.AuctionKeeper,
 		&app.BondKeeper,
-		// &app.RegistryRecordKeeper,
 		&app.RegistryKeeper,
 	); err != nil {
 		return nil, err