Feature: search in ModelQueries

[MarlonJD]

Issue:
#4189

Description of changes:
I created ModelQueries.search which based on ModelQueries.list, it's the same with .list except where operations, please check if it's looks good for you, I only added matchPhrasePrefix as a operation, I noted as /// It's only for GraphQL API with Amplify.API.query()

There are DataStore operations like QuerySortBy and it's not a creating any issue that only using Amplify.API users. So I just added matchPhrasePrefix as a QueryPredicateOperation.

If it's looks good, I can add other operations using on search in GraphQL. These are: matchPhrase, match, multiMatch, ne, range, regexp, eq, exists, gt, gte, lt, lte, wildcard

but I think it's already enough with matchPhrasePrefix.

[MarlonJD]

I created new pr for tests fails, I cloned and made changes and run aft run test:unit:flutter #4210