test case to test glm_vec4_distance running on Android device (armv7 or 8 capable) according to issue #82 of cglm on github

test_vec4_distance.c

  CGLM_ALIGN(16) vec4 v1;
  CGLM_ALIGN(16) vec4 v2;
  float d1, d2;
  for (int i=0; i<1000; ++i)
  {
    test_rand_vec4(v1);
    test_rand_vec4(v2);
    d1 = glm_vec4_distance(v1, v2);
    d2 = sqrtf(powf(v1[0]-v2[0], 2.0f) + pow(v1[1]-v2[1], 2.0f) + pow(v1[2]-v2[2], 2.0f) + pow(v1[3]-v2[3], 2.0f));
    if (fabsf(d1 - d2) > 0.000009)
    {
      KRR_LOGE("test %d failed", i);
    }
  }