fix: optimization: PVS-Studio warning V813

Passing large objects by const reference avoids unnecessary copying and enhances efficiency.

Reported by: PVS-Studio
Signed-off-by: Vyacheslav Ivanov <islavaivanov76@gmail.com>

src/graphics/core/LineBatch.hpp

@@ -18,7 +18,7 @@ public:
     LineBatch(size_t capacity=4096);
     ~LineBatch();
 
-    inline void line(const glm::vec3 a, const glm::vec3 b, const glm::vec4 color) {
+    inline void line(const glm::vec3 &a, const glm::vec3 &b, const glm::vec4 &color) {
         line(a.x, a.y, a.z, b.x, b.y, b.z, color.r, color.g, color.b, color.a); 
     }
     void line(float x1, float y1, float z1, float x2, float y2, float z2,
@@ -26,7 +26,7 @@ public:
     void box(float x, float y, float z, float w, float h, float d,
              float r, float g, float b, float a);
 
-    inline void box(glm::vec3 xyz, glm::vec3 whd, glm::vec4 rgba) {
+    inline void box(const glm::vec3 &xyz, const glm::vec3 &whd, const glm::vec4 &rgba) {
         box(xyz.x, xyz.y, xyz.z, whd.x, whd.y, whd.z,
             rgba.r, rgba.g, rgba.b, rgba.a);
     }