Adds TypeBuilders and ColumnBuilders for specifying the schema of a TypeScript module

[cloutiertyler]

Description of Changes

This is a purely additive change to introduce, TypeBuilders, ColumnBuilders, and a t factory export that has methods for creating TypeBuilders.

There are derived types from TypeBuilders for each variant of AlgebraicType. TypeBuilders can be converted into a ColumnBuilder which supports creating additional metadata specifying whether a column is a primary key or should be unique. ColumnBuilders are not allowed within TypeBuilders, but the opposite is allowed (for composite types).

ColumnBuilders can only be used at the top level and contain a TypeBuilder.

TypeBuilder stores three pieces of information:

1. A phantom typescript type that the SATS type should be interpreted as in TS
2. A phantom typescript type which is the type of the SATS type
3. A runtime AlgebraicType which stores the information to be reported to host.

ColumnBuilder stores three pieces of information:

1. A TypeBuilder
2. A phantom typescript type with the column metadata
3. A runtime ColumnMetadata which stores the information to be reported to the host.

API and ABI breaking changes

None

Expected complexity level and risk

2

Testing

NOTE: Testing is not yet working because of vitest issues. The fix may require changing codegen.