feat: added sql handler

[github-actions[bot]]

Merging this branch will increase overall coverage

Impacted Packages	Coverage Δ	:robot:
github.com/ryshoooo/food-me/internal	29.27% (+6.02%)	:thumbsup:

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Coverage by file

### Changed files (no unit tests) | Changed File | Coverage Δ | Total | Covered | Missed | :robot: | |--------------|------------|-------|---------|--------|---------| | github.com/ryshoooo/food-me/internal/interfaces.go | 0.00% (ø) | 0 | 0 | 0 | | | github.com/ryshoooo/food-me/internal/postgres.go | 0.00% (ø) | 496 (-16) | 0 | 496 (-16) | | | github.com/ryshoooo/food-me/internal/postgres_sql_handler.go | 100.00% (**+100.00%**) | 50 (+50) | 50 (+50) | 0 | :star2: | | github.com/ryshoooo/food-me/internal/sqlhandler.go | 100.00% (**+100.00%**) | 3 (+3) | 3 (+3) | 0 | :star2: | _Please note that the "Total", "Covered", and "Missed" counts above refer to ***code statements*** instead of lines of code. The value in brackets refers to the test coverage of that file in the old version of the code._ ### Changed unit test files - github.com/ryshoooo/food-me/internal/postgres_sql_handler_test.go - github.com/ryshoooo/food-me/internal/sqlhandler_test.go