Provide Sunday and Monday functions with time (jinzhu#44)

* add time  for Monday and Sunday

* fix Readme

Co-authored-by: Jinzhu <wosmvp@gmail.com>

Add more parse time format

Fix hasTimeRegexp, close jinzhu#51

Add mysql time layout

Add With method, close jinzhu#32

Add Config support

Add go.mod

Add time JSON default marshal format