Variable initialization

• sgs_MakeNull - initialize variable to a null variable
• sgs_MakeBool - initialize variable to a boolean variable
• sgs_MakeInt - initialize variable to an integer
• sgs_MakeReal - initialize variable to a real value
• sgs_MakeCFunc - initialize variable to C function
• sgs_MakePtr - initialize variable to a pointer variable
• sgs_InitStringBuf - initialize variable to a new char buffer
• sgs_InitString - initialize variable to a new string
• sgs_InitObjectPtr - initialize variable to an existing object and acquire it
• sgs_InitThreadPtr - initialize variable to a thread (context/coroutine) and acquire it
• sgs_CreateObject - initialize variable to a new object
• sgs_CreateObjectIPA - initialize variable to a new object with additional memory allocated in-place for the internal data pointer
• sgs_CreateArray - initialize variable to a new array, optionally using the specified number of pushed items on stack
• sgs_CreateDict - initialize variable to a new dict, optionally using the specified number of pushed items on stack
• sgs_CreateMap - initialize variable to a new map, optionally using the specified number of pushed items on stack
• sgs_CreateEvent - initialize variable to a new event
• sgs_CreatePooledEventBuf - initialize variable to a new or existing pooled event (by name in buffer)
• sgs_CreatePooledEvent - initialize variable to a new or existing pooled event (by C-string name)