add in-world lines renderer

src/graphics/render/LinesRenderer.cpp

@@ -0,0 +1,14 @@
+#include "LinesRenderer.hpp"
+
+#include "graphics/core/LineBatch.hpp"
+
+void LinesRenderer::draw(LineBatch& batch) {
+    for (const auto& line : queue) {
+        batch.line(line.a, line.b, line.color);
+    }
+    queue.clear();
+}
+
+void LinesRenderer::pushLine(const glm::vec3& a, const glm::vec3& b, const glm::vec4& color) {
+    queue.push_back({a, b, color});
+}