Add fuction database update tool to extract sql tag

[harissudrajat]

This function used for extract the column name on struct tag sql with prefix column:

type Model struct {
	ID      int    `sql:"column:id;" json:"id"`
	Name    string `sql:"column:name;" json:"name"`
	Address string `sql:"column:address" json:"address"`
}

type Repository interface {
	Update(ctx context.Context, data *Model) error
}

type sqlRepo struct {
	updateTool *DBUpdateTools
}

func NewSQLRepo() Repository {
	return &sqlRepo{
		updateTool: &DBUpdateTools{
			KeyExtractorFunc: DBUpdateSqlExtractorKey,
		},
	}
}

func (s *sqlRepo) Update(ctx context.Context, data *Model) error {

	data = &Model{
		ID:      1,
		Name:    "John",
		Address: "Indonesia",
	}

	updated := s.updateTool.ToMap(data)

	return nil
}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 22.88%. Comparing base (f9dba3e) to head (be9204e).

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #41      +/-   ##
==========================================
+ Coverage   22.72%   22.88%   +0.15%     
==========================================
  Files          43       43              
  Lines        2477     2482       +5     
==========================================
+ Hits          563      568       +5     
  Misses       1890     1890              
  Partials       24       24              

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