Should fix messed up import suggestions and simplifies all tsconfigs
through inheritance.
One main issue was that packages were inheriting `baseURL: "."` from the
root tsconfig. This caused incorrect import suggestions that start with
"packages/...".
This PR ensures that packages do not inherit this baseURL: "." property,
while ensuring the root, non-inherited tsconfig still keeps it to get
tests to work (the importMap needs it)
- Abstract shared sql code to a new drizzle package
- Adds sqlite package, not ready to publish until drizzle patches some
issues
- Add `transactionOptions` to allow customizing or disabling db
transactions
- Adds "experimental" label to the `schemaName` property until drizzle
patches an issue
