Convert bitmapData in Phaser 2 to the one for Phaser 3

[samme]

Phaser 3 has CanvasTexture (a texture) and RenderTexture (a game object).

Look at

• textures/canvas texture composite op
• game objects/render texture/erase part of render texture
• Phaser Coding Tips 1 & 2 Revisited: Creating a game like Tanks / Worms