state 2 of FileIO plugin: adding/removing FileIO types, search through all registered FileIO types.

(not enabled by default yet)
Example:
fileIO = p.loadPlugin("fileIOPlugin")
print("fileIO=",fileIO)
p.executePluginCommand(fileIO,"e:/develop/bullet3/data/plane.zip", [p.AddFileIOAction,p.ZipFileIO])
p.executePluginCommand(fileIO,"e:/develop/bullet3/data/test2.zip", [p.AddFileIOAction,p.ZipFileIO])
planeId = p.loadURDF("plane.urdf")
duckId = p.loadURDF("duck_vhacd.urdf",[0,0,1])

examples/SharedMemory/SharedMemoryPublic.h

@@ -909,4 +909,18 @@ enum eConstraintSolverTypes
 	eConstraintSolverLCP_BLOCK_PGS,
 };
 
+enum eFileIOActions
+{
+	eAddFileIOAction = 1024,//avoid collision with eFileIOTypes
+	eRemoveFileIOAction,
+};
+
+
+enum eFileIOTypes
+{
+	ePosixFileIO = 1,
+	eZipFileIO,
+	eCNSFileIO,
+};
+
 #endif  //SHARED_MEMORY_PUBLIC_H