fix: Fix lose of values of layout, weekStartsAt, weekendDays and lang when create new carbon instance

Author: kuafuRace

creator.go

@@ -155,7 +155,7 @@ func CreateFromTimeNano(hour, minute, second, nanosecond int, timezone ...string
 	return create(year, month, day, hour, minute, second, nanosecond, timezone...)
 }
 
-// creates a Carbon instance from a given date, time and nanosecond.
+// creates a new Carbon instance from a given date, time and nanosecond.
 func create(year, month, day, hour, minute, second, nanosecond int, timezone ...string) *Carbon {
 	var (
 		tz  string
@@ -173,7 +173,7 @@ func create(year, month, day, hour, minute, second, nanosecond int, timezone ...
 	return NewCarbon(time.Date(year, time.Month(month), day, hour, minute, second, nanosecond, loc))
 }
 
-// creates a Carbon instance from a given date, time and nanosecond.
+// creates a new Carbon instance from a given date, time and nanosecond based on the existing Carbon.
 func (c *Carbon) create(year, month, day, hour, minute, second, nanosecond int) *Carbon {
 	return &Carbon{
 		time:          time.Date(year, time.Month(month), day, hour, minute, second, nanosecond, c.loc),