Generate DB filters from payload

[Serjlee]

Copilot wrote a more detailed README (thx), but in short:

• 1. Comment the struct you are using for the payload:

  // db:filter
  // db:filter import "fmt"
  // db:filter sortField Sort
  type TestStruct struct {
      Sortable
      // db:filter "stuff"
      Test string `query:"test"`
      // db:filter fmt.Sprintf("heee")
      Test2 *string `query:"test2"`
      // db:filter "EEEI"
      Test3 []string `query:"test3"`
  }

• 2. Run generate command:

  go run github.com/top-solution/go-libs/v2/dbutils/ops/gen/cmd@v9.9.9 bob <path> # or "boiler"

• 3. Enjoy generated methods:

  func (t *TestStruct) AddFilters(q *[]bob.Mod[*dialect.SelectQuery]) error {
  ...
  func (t *TestStruct) AddSorting(query *[]bob.Mod[*dialect.SelectQuery]) error {