Add module sv-lang (#6173)

Add new module to BCR: [slang](https://sv-lang.com/)

The module itself is called `sv-lang` to avoid conflicts with other
tools that may be named `slang`

This wraps the slang project with a Bazel build

It includes:

- Slang C++ Libraries
- Binary for the main slang driver
- Binaries for the slang tools (slang-tidy, rewriter, ...)
- Locally-built Python bindings (pyslang)

Author: ahizzey

modules/sv-lang/9.1.0/MODULE.bazel

@@ -0,0 +1,19 @@
+"""https://sv-lang.com/"""
+
+module(
+    name = "sv-lang",
+    version = "9.1.0",
+    bazel_compatibility = [">=7.2.1"],
+)
+
+bazel_dep(name = "aspect_bazel_lib", version = "2.21.2")
+bazel_dep(name = "aspect_rules_py", version = "1.6.4")
+bazel_dep(name = "bazel_skylib", version = "1.8.2")
+bazel_dep(name = "boost.unordered", version = "1.87.0")
+bazel_dep(name = "fmt", version = "12.0.0")
+bazel_dep(name = "platforms", version = "1.0.0")
+bazel_dep(name = "pybind11_bazel", version = "2.13.6")
+bazel_dep(name = "rules_cc", version = "0.2.9")
+bazel_dep(name = "rules_foreign_cc", version = "0.15.1")
+bazel_dep(name = "rules_pycross", version = "0.8.0")
+bazel_dep(name = "rules_python", version = "1.6.3")

modules/sv-lang/9.1.0/README.md

@@ -0,0 +1,27 @@
+# Slang (sv-lang)
+
+This is a bazel wrapper to build [slang](https://sv-lang.com/).
+
+It includes:
+
+- Slang C++ Libraries
+- Binary for the main slang driver
+- Binaries for the slang tools (slang-tidy, rewriter, ...)
+- Locally-built Python bindings (pyslang)
+
+## Pyslang
+
+Pyslang is available on PyPI, but the option of using a local build is provided
+to take advantage of the reproducable hermetic build, and to align the versions
+used for Slang and Pyslang in a given repository.
+
+Because we include the Python bindings, we do not use `mimalloc` in the main slang library build as they are incompatible.
+
+
+## TODO
+
+Desirable future changes to this build include:
+
+- support multithreading in the C++ with `SLANG_USE_THREADS`
+- add `.pyi` stubs for the Pythonbindings
+- add a method to patch in CPPTRACE with `SLANG_USE_CPPTRACE`