Added base lua manager

- CMakeLists.txt, Makefile, and appveyor now use luajit
- lua/LuaManager.[ch]pp has been added which includes a basic script loader & thread scheduler
- SCRIPTSDIR has been added to settings.[ch]pp, this specifies what directory lua scripts should be loaded from
- Makefile has been updated to include lua/LuaManager.[ch]pp

Makefile

@@ -6,7 +6,7 @@ CXX=clang++
 # If compiling with ASAN, invoke like this: $ LSAN_OPTIONS=suppressions=suppr.txt bin/fusion
 CFLAGS=-O3 #-g3 -fsanitize=address
 CXXFLAGS=-Wall -Wno-unknown-pragmas -std=c++17 -O2 -DPROTOCOL_VERSION=$(PROTOCOL_VERSION) -DGIT_VERSION=\"$(GIT_VERSION)\" -I./src -I./vendor #-g3 -fsanitize=address
-LDFLAGS=-lpthread -lsqlite3 #-g3 -fsanitize=address
+LDFLAGS=-lpthread -lsqlite3 -lluajit-5.1 -lstdc++fs #-g3 -fsanitize=address
 # specifies the name of our exectuable
 SERVER=bin/fusion
 
@@ -19,7 +19,7 @@ WIN_CC=x86_64-w64-mingw32-gcc
 WIN_CXX=x86_64-w64-mingw32-g++
 WIN_CFLAGS=-O3 #-g3 -fsanitize=address
 WIN_CXXFLAGS=-D_WIN32_WINNT=0x0601 -Wall -Wno-unknown-pragmas -std=c++17 -O3 -DPROTOCOL_VERSION=$(PROTOCOL_VERSION) -DGIT_VERSION=\"$(GIT_VERSION)\" -I./src -I./vendor #-g3 -fsanitize=address
-WIN_LDFLAGS=-static -lws2_32 -lwsock32 -lsqlite3 #-g3 -fsanitize=address
+WIN_LDFLAGS=-static -lws2_32 -lwsock32 -lsqlite3 -lluajit-5.1 -lstdc++fs #-g3 -fsanitize=address
 WIN_SERVER=bin/winfusion.exe
 
 # C code; currently exclusively from vendored libraries
@@ -43,6 +43,7 @@ CXXSRC=\
 	src/servers/CNLoginServer.cpp\
 	src/servers/CNShardServer.cpp\
 	src/servers/Monitor.cpp\
+	src/lua/LuaManager.cpp\
 	src/db/init.cpp\
 	src/db/login.cpp\
 	src/db/shard.cpp\
@@ -86,6 +87,7 @@ CXXHDR=\
 	src/servers/CNLoginServer.hpp\
 	src/servers/CNShardServer.hpp\
 	src/servers/Monitor.hpp\
+	src/lua/LuaManager.hpp\
 	src/db/Database.hpp\
 	src/db/internal.hpp\
 	vendor/bcrypt/BCrypt.hpp\