Add a way to determine whether a device/GPU can handle high-precision

[tcdude]

Is your feature request related to a problem? Please describe.
I would like to be able to determine whether a GLES device is capable of high-precision.

Describe the solution you'd like
A new API call that returns a bool of whether high-precision can be used in the shader.

Describe alternatives you've considered
Writing the shaders to allow for different code paths using integrated macros.

Additional context
This is particularly aimed at the Android backend, but could maybe also serve on other backends like webgl based ones