refactor: deduplicate and abstract SQL schema building

[r1tsuu]

What?

Abstracts SQL schema building, significantly reducing code duplication for SQLite / Postgres

db-sqlite lines count From:

 wc -l **/*.ts
      62 src/connect.ts
      32 src/countDistinct.ts
       9 src/createJSONQuery/convertPathToJSONTraversal.ts
      86 src/createJSONQuery/index.ts
      15 src/defaultSnapshot.ts
       6 src/deleteWhere.ts
      21 src/dropDatabase.ts
      15 src/execute.ts
     178 src/index.ts
     139 src/init.ts
      19 src/insert.ts
      19 src/requireDrizzleKit.ts
     544 src/schema/build.ts
      27 src/schema/createIndex.ts
      38 src/schema/getIDColumn.ts
      13 src/schema/idToUUID.ts
      28 src/schema/setColumnID.ts
     787 src/schema/traverseFields.ts
      18 src/schema/withDefault.ts
     248 src/types.ts
    2304 total

To:

wc -l **/*.ts
      62 src/connect.ts
      32 src/countDistinct.ts
       9 src/createJSONQuery/convertPathToJSONTraversal.ts
      86 src/createJSONQuery/index.ts
      15 src/defaultSnapshot.ts
       6 src/deleteWhere.ts
      21 src/dropDatabase.ts
      15 src/execute.ts
     180 src/index.ts
      39 src/init.ts
      19 src/insert.ts
      19 src/requireDrizzleKit.ts
     149 src/schema/buildDrizzleTable.ts
      32 src/schema/setColumnID.ts
     258 src/types.ts
     942 total

Builds abstract schema in shared drizzle package that later gets converted by SQLite/ Postgres specific implementation into drizzle schema.
This, apparently can also help here #9953. It should be very trivial to implement a MySQL adapter with this as well.

[DanRibbens]

This is very exciting to me. I wanted to do this when we first built SQLite and opted to speed past it. I love that you cleaned up our tech debt here.

I have a few questions after reviewing from mobile.

[DanRibbens]

Great work!

[r1tsuu]

I'll do some extra migrations regression testing just in case and then merge

[r1tsuu]

With the website template when updated to 3.7.1-canary.2ce70a3 I didn't get schema changes.

[github-actions]

🚀 This is included in version v3.8.0