Add Navigation Line shape

[yonasadiel]

Add navigation line to find a coordinate quicker. For example, we can add coordinate for buried treasure then go to the correct coordinate easily:

This is my own addition, maybe someone / the author is interested. Im not sure how to run and test on other launcher, so this is only tested in fabric 1.16.4.

Possible improvement:

• use line instead of GL_QUADS, then adjust the thickness of the line
• show text of the navigation name on the destination, without scaled down, so player can manage multiple coordinates easily
• set the beginning of the line to player position instead of camera position, for better view on other F5 mode.