lua LCD (Lua Compact Debug) patch

LCD developed 9/2015 by Terry Ellison

 We've already discarded the ldebug module from lua
 it only makes sense to discard the debug info as well
 adds 1.5 K to the binary
 saves 8 Kb on the base state
 once scripts start getting called i've seen 10-50Kb savings but it all depends on
 what exactly you are running

Change-Id: Ibb74f344df1c4c96380ec6c98b010a810e9ae9cc

apps/plugins/lua/lobject.h

@@ -240,7 +240,11 @@ typedef struct Proto {
   TValue *k;  /* constants used by the function */
   Instruction *code;
   struct Proto **p;  /* functions defined inside the function */
+#ifdef LUA_OPTIMIZE_DEBUG
+  unsigned char *packedlineinfo;
+#else
   int *lineinfo;  /* map from opcodes to source lines */
+#endif
   struct LocVar *locvars;  /* information about local variables */
   TString **upvalues;  /* upvalue names */
   TString  *source;