Add more configurable constructors for all adapters

adapters/kmysql/kmysql.go

@@ -11,6 +11,11 @@ import (
 	_ "github.com/go-sql-driver/mysql"
 )
 
+// NewFromSQLDB builds a ksql.DB from a *sql.DB instance
+func NewFromSQLDB(db *sql.DB) (ksql.DB, error) {
+	return ksql.NewWithAdapter(NewSQLAdapter(db), "mysql")
+}
+
 // New instantiates a new KissSQL client using the "mysql" driver
 func New(
 	_ context.Context,

adapters/kpgx/kpgx.go

@@ -11,7 +11,7 @@ import (
 	_ "github.com/lib/pq"
 )
 
-// NewFromPgxPool builds a ksql.DB from a *pgxpool.Pool instance.
+// NewFromPgxPool builds a ksql.DB from a *pgxpool.Pool instance
 func NewFromPgxPool(pool *pgxpool.Pool) (db ksql.DB, err error) {
 	return ksql.NewWithAdapter(NewPGXAdapter(pool), "postgres")
 }

adapters/ksqlite3/ksqlite3.go

@@ -11,6 +11,11 @@ import (
 	_ "github.com/mattn/go-sqlite3"
 )
 
+// NewFromSQLDB builds a ksql.DB from a *sql.DB instance
+func NewFromSQLDB(db *sql.DB) (ksql.DB, error) {
+	return ksql.NewWithAdapter(NewSQLAdapter(db), "sqlite3")
+}
+
 // New instantiates a new KissSQL client using the "sqlite3" driver
 func New(
 	_ context.Context,

adapters/ksqlserver/ksqlserver.go

@@ -11,6 +11,11 @@ import (
 	_ "github.com/denisenkom/go-mssqldb"
 )
 
+// NewFromSQLDB builds a ksql.DB from a *sql.DB instance
+func NewFromSQLDB(db *sql.DB) (ksql.DB, error) {
+	return ksql.NewWithAdapter(NewSQLAdapter(db), "sqlserver")
+}
+
 // New instantiates a new KissSQL client using the "sqlserver" driver
 func New(
 	_ context.Context,