Small Optimizations regarding entity rendering

[Speiger]

o/
I know this is more of a nitpick but you can optimize entity rendering.

TheOneProbe/src/main/java/mcjty/theoneprobe/rendering/RenderHelper.java

Line 41 in 3ebf70c

matrixStack.mulPose(Vector3f.ZP.rotationDegrees(180));

Because there is useless multiplications in there, since neither JOML or minecraft decrease matrix operations if they do nothing.

        matrixStack.mulPose(Vector3f.ZP.rotationDegrees(180));
        matrixStack.mulPose(Vector3f.YP.rotationDegrees(135)); //Useless
        net.minecraft.client.renderer.RenderHelper.turnBackOn(); //Just sets a shader texture/flag, doesn't use the Matrix and even if the matrix wasn't applied yet.
        matrixStack.mulPose(Vector3f.YP.rotationDegrees(-135)); //Useless since it just negates the previous operation with 0 uses actually.
        matrixStack.mulPose(Vector3f.YP.rotationDegrees(rot));
        matrixStack.mulPose(Vector3f.XP.rotationDegrees(0)); //WHY? Debug stuff left?

It is just a tiny optimization, but it gets rid of expensive calculations that lower end hardware would benefit A LOT of.

Edit: This is even in newer mc versions.
Edit: Also i found out that if you Lighting.setupForFlatItems() entities look better, especially if rotating. Though you have to try that.