feat(udev): add locals queries

queries/udev/locals.scm

@@ -0,0 +1,29 @@
+;; labels
+
+(assignment
+  key: "LABEL"
+  (value (content) @definition))
+
+(assignment
+  key: "GOTO"
+  (value (content) @reference))
+
+;; env vars
+
+(assignment
+  key: "ENV"
+  (env_var) @definition.var)
+
+(match
+  key: "ENV"
+  (env_var) @reference)
+
+(var_sub (env_var) @reference)
+
+;; misc
+
+[
+  (attribute)
+  (kernel_param)
+  (seclabel)
+] @reference