csv import

[max-hoffman]

usage:

$ mkdir tmp
$ cd tmp
$ dolt init
$ dolt sql < ../dolt-schema.sql
$ dolt table import -u books ../oreilly_mod.csv
Rows Processed: 10, Additions: 10, Modifications: 0, Had No Effect: 0
Import completed successfully.
$ dolt sql -q "select id, ourn, isbn  from books limit 1"
+--------------------------------------------------------------+----------------------------+---------------+
| id                                                           | ourn                       | isbn          |
+--------------------------------------------------------------+----------------------------+---------------+
| https://www.safaribooksonline.com/api/v1/book/9781098108298/ | urn:orm:book:9781098108298 | 9781098108304 |
+--------------------------------------------------------------+----------------------------+---------------+