video_shader_resolve_parameters did not take #includes into account
while the Vulkan implementation did. Added a helper function which
parses a shader file and figures out the shader parameters in the same
way.
Include all formats which are required to be supported in Vulkan 1.0 and
GLES 3.x. Not all these formats are supported in GLES2, but that's up to
shaders to decide whether they want to support GLES2 or not.
