Add destroyColumn, renameColumn, and destroyTable migration steps

[skam22]

This PR implements most of the outstanding code changes from

#1671 and #1654.

In addition to resolving those conflicts it has a few minor syntactic / grammatical fixes to match the existing migration approaches.

[skam22]

added destroy table migration step as well

[radex]

@skam22 Thank you for your contribution! I'm seeing some issues, and I'd like to have this feature finished and shipped, so I took the liberty to add more commits to your PR. Thanks!

[skam22]

ok let me know if you need help with anything.

[KrisLau]

Somewhat related to this PR but it would be nice to be able to reset the entire db (schema, lastPulledAt and all) during/instead of migrations as well so that the backend can be the main source of data and migrations can be simplified for apps that don't require the full offline functionality. I created an issue to ask about it awhile back: #1609

[skam22]

@radex resolved conflicts

[skam22]

@radex fwiw I was able to run the tests locally with success by changing the iPhone model to 15 instead of 14 (as is required for Xcode 15.4).

scripts/test-ios

#!/bin/bash

set -x
set -e

xcodebuild -workspace native/iosTest/WatermelonTester.xcworkspace -scheme 'WatermelonTester' -destination 'name=iPhone 15' test

[KarthikRaju391]

Hi, is something holding this PR back from being merged? Is there any help needed?

[mrtncode]

I would be interested too! :)
Is there more activity in this PR planned? @radex

[KrisLau]

@radex

[MrCordeiro]

It would be great to know what's missing in this PR, @radex . Then others could help. It's been more than 2 years when you take into account the 2 smaller PRs closed in favor of this one