feat: add primary key to plan tables

sbroad-cartridge/src/cartridge/config.rs

sbroad-cartridge/src/cartridge/config/tests.rs

sbroad-core/src/backend/sql/tree/tests.rs

sbroad-core/src/errors.rs

sbroad-core/src/executor/engine/mock.rs

sbroad-core/src/ir/distribution.rs

sbroad-core/src/ir/distribution/tests.rs

sbroad-core/src/ir/expression/tests.rs

sbroad-core/src/ir/operator.rs

sbroad-core/src/ir/operator/tests.rs

sbroad-core/src/ir/relation.rs

sbroad-core/src/ir/relation/tests.rs

sbroad-core/src/ir/tests.rs

sbroad-core/src/ir/transformation/redistribution/insert.rs

sbroad-core/src/ir/transformation/redistribution/tests.rs

...ore/src/ir/transformation/redistribution/tests/segment.rs

sbroad-core/src/ir/tree/tests.rs

...tifactory/backend/sql/tree/arbitrary_projection_plan.yaml

...ifactory/backend/sql/tree/arithmetic_projection_plan.yaml

...tifactory/backend/sql/tree/arithmetic_selection_plan.yaml