add new matrix mat3x2

Initial function being

glm_mat3x2_make

Signed-off-by: Vincent Davis Jr <vince@underview.tech>

test/src/test_common.c

@@ -256,6 +256,19 @@ test_assert_mat3_eq_zero(mat3 m3) {
   TEST_SUCCESS
 }
 
+test_status_t
+test_assert_mat3x2_eq_zero(mat3x2 m3x2) {
+  int i, j;
+
+  for (i = 0; i < 3; i++) {
+    for (j = 0; j < 2; j++) {
+      ASSERT(test_eq(m3x2[i][j], 0.0f))
+    }
+  }
+
+  TEST_SUCCESS
+}
+
 test_status_t
 test_assert_mat4_eq_identity(mat4 m4) {
   int i, j;