Option to hide default exp number via shader

[Boy0000]

using https://github.com/McTsts/mc-core-shaders#move-xp-number you can add an option to move it or just hide it by setting alpha to 0

[Ehhthan]

Additional shader options:

• Hide health
• Hide side bar

[Boy0000]

This would be great yeah

[Ehhthan]

You can now manually edit the shader file in 0.2.0. This should allow you to combine shaders.