Issue #81: Add Table object and changes to support it.

CHANGELOG.md

form-creator-database

package.json

src/core/input.ts

src/core/inputUpdate.spec.ts

src/core/table.ts

src/utils/dbHandler.spec.ts

src/utils/diffHandler.ts

src/utils/enumHandler.ts

src/utils/formQueryBuilder.ts

src/utils/optHandler.ts

src/utils/testHandler.ts

test/scenario.ts