Add sqlboiler bazel rules

This implements a bazel rule to build sqlboiler models from sql migration stacks. It also launches a cockroachdb container in `create_container` and puts it in one pod with the nexantic-dev container.

Currently gazelle overwrites the `go_library` rule. I still need to find a way to properly exclude it.

Test Plan: Built a sample set of sql models

X-Origin-Diff: phab/D226
GitOrigin-RevId: ff24f07bb0b3da9994c52a74f48b54e1e2bea726
diff --git a/build/sqlboiler/BUILD b/build/sqlboiler/BUILD
new file mode 100644
index 0000000..e9ec548
--- /dev/null
+++ b/build/sqlboiler/BUILD
@@ -0,0 +1,4 @@
+exports_files([
+    "dbconfig.yml",
+    "sqlboiler.toml",
+])