Autogen context version checks for 3.1 & 3.2 entry points As a side effect, added missing version checks for the following OpenGL ES 3.2 entry points: * BlendEquationi * BlendEquationSeparatei * BlendFunci * BlendFuncSeparatei * ColorMaski * Disablei * DrawElementsBaseVertex * DrawElementsInstancedBaseVertex * DrawRangeElementsBaseVertex * Enablei * GetDebugMessageLog * GetPointerv * IsEnabledi * MinSampleShading * PopDebugGroup * PrimitiveBoundingBox * PushDebugGroup Bug: angleproject:409484297 Change-Id: I6be7e3a4a8ba9b99595f4930d9c3a1fa1b4c6154 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6441552 Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com> Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>