Fix bugs related to "GRANT ALL(column)" and a few additions to RLS support

[ruslantalpa]

This PR includes:

• A few additions to complete the RLS support added by the last PR from @steve-chavez
• Fix GRANT SELECT(col1) bug (the statement is not even ignored, the app crashes) @steve-chavez
• Support GRANT per column on views. This one has implications even in situations when only the view definition is changed because the strategy used is to DROP VIEW and then create it after which all the GRANT statements are added again and since grants per column were not supported, the migration diff would effectively remove those
• Added a few dirs/files that are created on build to the ignore list.

PS: This PR's commit history is not that clean so if you care for things like that, you can squash the commits. Let me know if you want any changes/cleanup

[chadfurman]

Looks okay. Can we get someone else to sign off on whether or not it builds and runs alright?