Implement the deleting texture function.
Fix that the color attribute pointer was the wrong value.
Add the bitmap font rendering code.
but it is not worked now.
Remove some redundant import.
Import the vec4 function without qualified.
Add the type signature for the top-level binding.
Fix the warning of unused binding.
Fix the warning of name hiding.
Fix a mistake the texcoord offset calculation.
Fix the issue that the texture image is not displayed.
That cause is that it have no texture sampler, and don't set the mipmap level.
It also have the wrong value of the texture coodinate.
Implement the bitmap font rendering.
Implement to display the score board.