add vlang binding (#67)

vlang/ruapu.v

@@ -0,0 +1,13 @@
+module main
+
+import ruapu
+
+fn main() {
+    ruapu.ruapu_init()
+    mut avx2_status := ruapu.ruapu_supports('avx2')
+    if avx2_status {
+        println('avx2: ' + avx2_status.str())
+    }
+
+    println(ruapu.ruapu_rua())
+}

vlang/ruapu/wrapper.c.v

@@ -0,0 +1,33 @@
+module ruapu
+
+#flag -I @VMODROOT/../
+#flag -D RUAPU_IMPLEMENTATION
+#include "ruapu.h"
+
+fn C.ruapu_init()
+
+fn C.ruapu_supports(&char) int
+
+fn C.ruapu_rua() &&char
+
+pub fn ruapu_init() {
+    C.ruapu_init()
+}
+
+pub fn ruapu_supports(isa string) bool {
+    return C.ruapu_supports(unsafe { isa.str }) == 1
+}
+
+pub fn ruapu_rua() []string {
+    mut cstr_array := C.ruapu_rua()
+    mut v_strings := []string{}
+    
+    unsafe {
+        for i := 0; cstr_array[i] != 0; i++ {
+            str :=  cstring_to_vstring(cstr_array[i])
+            v_strings << str
+        }
+    }
+    
+    return v_strings
+}

vlang/v.mod

@@ -0,0 +1,5 @@
+Module {
+	name: 'ruapu',
+	description: 'Detect CPU ISA features with single-file.',
+	dependencies: []
+}