Fix glBindVertexBuffers typo, add zoffset to glCompressedTexSubImage3D

[malciin]

Hello, durning parsing gl4 xml files (for creating opengl C# bindings) I've found several typos/missing parameter descriptions. I've fixed some of them:

• glBindVertexBuffers Fix typo: buffers -> strides https://registry.khronos.org/OpenGL-Refpages/gl4/html/glBindVertexBuffers.xhtml
• glCompressedTexSubImage3D Add missing: zoffset https://registry.khronos.org/OpenGL-Refpages/gl4/html/glCompressedTexSubImage3D.xhtml (copied from ES3.0 https://registry.khronos.org/OpenGL-Refpages/es3.0/html/glCompressedTexSubImage3D.xhtml where there is parameter description for zoffset)

Other things I've noticed but I dont have proper fixes for them:

• glCopyImageSubData - Missing dstlevel in parameters section https://registry.khronos.org/OpenGL-Refpages/gl4/html/glCopyImageSubData.xhtml
• glFramebufferTexture - Missing layer in parameters section https://registry.khronos.org/OpenGL-Refpages/gl4/html/glFramebufferTexture.xhtml
• glGetNamedBufferParameteriv - Missing pname & params in parameters section https://registry.khronos.org/OpenGL-Refpages/gl4/html/glGetBufferParameter.xhtml
• glGetProgramResource - Only 2 arguments are in parameters section. 6 are missing. https://registry.khronos.org/OpenGL-Refpages/gl4/html/glGetProgramResource.xhtml
• glTexImage3DMultisample - Missing depth in parameters section https://registry.khronos.org/OpenGL-Refpages/gl4/html/glTexImage3DMultisample.xhtml

[oddhack]

Thanks!