Adding in the other new field - Channel as well

At some point these will need to sync with acoustic

Change #1064506 had a related patch set uploaded (by Eileen; author: Eileen):

[wikimedia/fundraising/crm@master] Triggers update rename package_377 to package, channel_378 to channel

https://gerrit.wikimedia.org/r/1064506

I brought this into the sprint to take advantage of the maintenance window to change the column name on the table from package_377 & channel_378 to package & channel.

I've added these to our dev env & I took a look at Acoustic & we aren't exporting any gift fields yet so there is nothing 'small' we can usefully do now to prepare for adding to Acoustic later

Change #1064506 merged by Dwisehaupt:

[wikimedia/fundraising/crm@master] Triggers update rename package_377 to package, channel_378 to channel

https://gerrit.wikimedia.org/r/1064506