Add validate function and test

lib/runtime-c-api/tests/test-validate.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include "../wasmer.h"
+#include <assert.h>
+#include <stdint.h>
+
+int main()
+{
+    // Read the wasm file bytes
+    FILE *file = fopen("sum.wasm", "r");
+    fseek(file, 0, SEEK_END);
+    long len = ftell(file);
+    uint8_t *bytes = malloc(len);
+    fseek(file, 0, SEEK_SET);
+    fread(bytes, 1, len, file);
+    fclose(file);
+
+    bool result = wasmer_validate(bytes, len);
+    printf("Result: %d", result);
+    assert(result);
+
+    return 0;
+}