v1.2.0

• Now using imgui-bundle version v1.92.700 (Dear ImGui v1.92.700)
• Fixed Panda3D textures being rendered upside-down.

• Added new addGraphicsBuffer function to backend for rendering "Render to Texture" buffer into a ImGui window.
• Added snake-case aliases for public backend functions for projects who prefers using them. (is_mouse_captured, is_keyboard_captured, load_texture, load_graphics_buffer, remove_texture)