add initial sqlite support, add modernc.org/sqlite to vendored libs

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

vendor/github.com/uptrace/bun/dialect/sqlitedialect/scan.go

@@ -0,0 +1,28 @@
+package sqlitedialect
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/uptrace/bun/schema"
+)
+
+func scanner(typ reflect.Type) schema.ScannerFunc {
+	if typ.Kind() == reflect.Interface {
+		return scanInterface
+	}
+	return schema.Scanner(typ)
+}
+
+func scanInterface(dest reflect.Value, src interface{}) error {
+	if dest.IsNil() {
+		dest.Set(reflect.ValueOf(src))
+		return nil
+	}
+
+	dest = dest.Elem()
+	if fn := scanner(dest.Type()); fn != nil {
+		return fn(dest, src)
+	}
+	return fmt.Errorf("bun: can't scan %#v into %s", src, dest.Type())
+}