Move syntax library from batteries to std (#350)

full type definitions for all lute std (#351)

Set __type for duration and instant (#344)

Use <= instead of < (visitInterpolatedString) (#345)

While working with the `visitor`, I noticed that interpolated strings
were not properly traversed. It appears that is bc of this condition,
which will not visit the last expression in the interpolated string
node's expressions table.

Fix C style cast in `system.cpp` not caught in code review (#343)

Add lineOffsets field to Luau parser output (#342)

This PR enhances the Luau parser to expose line offset information,
enabling tooling to better access precise source location mapping for
nodes.

**Changes Made**:

Exposes the computed 'lineOffsets' field to the Luau 'ParseResult'.
Modified exisitng ast test serializer tests to work with new apis.
Added new test to ensure that line offsets are exposed correctly.

```luau
local result = luau.parse("local x = 1\nlocal y = 2")
-- result.lineOffsets = { 0, 12 }  -- Line 0 starts at char 0, line 1 starts at char 12
```

Remove luthier.py since it's been superseded entirely by the Luau imp…

…lementation. (#337)

We no longer need to maintain `luthier.py`, and it poses a frustrating
maintenance risk right now to attempt to apply both together. It may be
useful in the future to introduce an optional path in the CI to fetch
everything from a tarball somewhere and then use cmake/ninja directly
instead of running luthier, but we can deal with that when needed.

Pull out new Lute.CLI.lib target to simplify testing (#333)

Resolves #315.

This PR doesn't currently expose anything more than the old `main`
function. As we begin writing tests, we can expand the API of
`Lute.CLI.lib`.

At a high-level, we make `Lute.CLI` a single-source target whose `main`
function simply calls into the `climain.cpp`'s `cliMain` function. This
function is identical to our old `main` function but can now be called
by unit tests.

Upgrade lute to latest nightly (#331)

Fix bad path in release workflow (#330)