This removes the need to load these decoders via mj_loadAllPluginLibraries when using MuJoCo built with CMake. Other plugins are unchanged.
PiperOrigin-RevId: 885555524
Change-Id: I20aa5b6c55b678398345d49cb1c47667ae2bebcf
Also make minor modifications to Python bindings code for GCC compatibility.
Fixes#191.
PiperOrigin-RevId: 435127640
Change-Id: I8bd3a35bbb2724a24341072ba8df3da4372f83d3