Misc gpu improvements

Shader decompiler changes part 2

renderer_opengl: Implement BlendEquation and BlendFunc.

file_sys: Add HFS/PFS helper component

GPU: Implement some wrap modes

* Updated ACC with more service names

* Updated SVC with more service names

* Updated set with more service names

* Updated sockets with more service names

* Updated SPL with more service names

* Updated time with more service names

* Updated vi with more service names

Implement indexed mode rendering

This clamp mode was removed from OpenGL as of 3.1, we can emulate it by using GL_CLAMP_TO_BORDER to get the border color of the texture, and then manually sampling the edge to mix them in the fragment shader.

pl_u: Use empty shared font if none is available.

GPU: Don't use explicit binding points when uploading the constbuffers to opengl

- Makes games work in lieu of shared_font.bin.

The bindpoints will now be dynamically calculated based on the number of buffers used by the previous shader stage.

fsp_srv: Implement DeleteFile.

 GPU: Use the buffer hints from the shader decompiler to upload only the necessary const buffers for each shader stage

- Used by Binding of Isaac.