feat(status): Add status command

[psucodervn]

Add status command for viewing status of migrations:

$ go run *.go status
+---------+------------------------------------------------+-------+
| Applied | Migration                                      | Batch |
+---------+------------------------------------------------+-------+
|    √    | 2021_02_26_151503_dump                         |     1 |
|    √    | 2021_02_26_151504_create_a_dump_table_for_test |     2 |
|         | 2021_02_26_151502_create_2nd_dump_table        |       |
|         | 2021_02_26_151505_create_3rd_dump_table        |       |
+---------+------------------------------------------------+-------+

[robinjoseph08]

Hey @psucodervn, I know this is super old, but this PR looks great, and I'm going to merge it! I appreciate the contribution!