Add Lua compiler

Redbean Lua Server Pages may now be stored in the zip as byte code. This
can improve performance, since redbean currently doesn't cache byte code
but it might be more useful for anyone wanting to create a closed source
redbean. The .lua extension should be used for byte code files. Lua will
tell them apart based on a magic number at the start of the file.

This change also improves some Lua error reporting conditions. See #97

third_party/lua/ltm.h

@@ -9,43 +9,10 @@
 
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/luaconf.h"
+#include "third_party/lua/tms.h"
 
 /* clang-format off */
 
-/*
-* WARNING: if you change the order of this enumeration,
-* grep "ORDER TM" and "ORDER OP"
-*/
-typedef enum {
-  TM_INDEX,
-  TM_NEWINDEX,
-  TM_GC,
-  TM_MODE,
-  TM_LEN,
-  TM_EQ,  /* last tag method with fast access */
-  TM_ADD,
-  TM_SUB,
-  TM_MUL,
-  TM_MOD,
-  TM_POW,
-  TM_DIV,
-  TM_IDIV,
-  TM_BAND,
-  TM_BOR,
-  TM_BXOR,
-  TM_SHL,
-  TM_SHR,
-  TM_UNM,
-  TM_BNOT,
-  TM_LT,
-  TM_LE,
-  TM_CONCAT,
-  TM_CALL,
-  TM_CLOSE,
-  TM_N		/* number of elements in the enum */
-} TMS;
-
-
 /*
 ** Mask with 1 in all fast-access methods. A 1 in any of these bits
 ** in the flag of a (meta)table means the metatable does not have the