add ImGuizmo plugin

[gucio321]

adds https://github.com/CedricGuillemet/ImGuizmo via https://github.com/gucio321/cimguizmo

Blocked by:

• generating latest docking creates invalid file cimgui/cimgui#277

[gucio321]

• blocker: cimguizmo.h:95 random ]] as return type appears cimgui/cimguizmo#3

[gucio321]

this compiles. Usage example will be created in a separted pr.
Here is some code but it doesn't wrok

demo

package main

import (
	"github.com/AllenDang/cimgui-go/backend"
	"github.com/AllenDang/cimgui-go/backend/glfwbackend"
	"github.com/AllenDang/cimgui-go/imgui"
	"github.com/AllenDang/cimgui-go/imguizmo"
	_ "github.com/AllenDang/cimgui-go/immarkdown"
	_ "github.com/AllenDang/cimgui-go/imnodes"
)

var (
	currentBackend backend.Backend[glfwbackend.GLFWWindowFlags]
	cameraView     = []float32{
		1.0, 0.0, 0.0, 0.0,
		0.0, 1.0, 0.0, 0.0,
		0.0, 0.0, 1.0, 0.0,
		0.0, 0.0, 0.0, 1.0,
	}
	cameraProjection = make([]float32, 16)
	identityMatrix   = []float32{
		1.0, 0.0, 0.0, 0.0,
		0.0, 1.0, 0.0, 0.0,
		0.0, 0.0, 1.0, 0.0,
		0.0, 0.0, 0.0, 1.0,
	}
)

func loop() {
	imguizmo.BeginFrame()
	io := imgui.CurrentIO()
	ds := io.DisplaySize()
	imguizmo.SetRect(0, 0, ds.X, ds.Y)

	imguizmo.Manipulate(cameraView, cameraProjection, 0, 0, &(identityMatrix[0]))
}

func main() {
	currentBackend, _ = backend.CreateBackend(glfwbackend.NewGLFWBackend())
	currentBackend.CreateWindow("Hello from cimgui-go", 1200, 900)
	currentBackend.SetAfterCreateContextHook(func() {
		imguizmo.SetImGuiContext(imgui.CurrentContext())
	})
	currentBackend.Run(loop)
}