feat: 增加一个很简单的repl(还不能用) 写了readme

xmake.lua

@@ -94,6 +94,26 @@ target("LSP")
     add_files("src/LSP/LSPServer.cpp")
     set_filename("Fig-LSP")
 
+target("ReplTest")
+    add_files("src/Core/*.cpp")
+    add_files("src/Token/Token.cpp")
+    add_files("src/Error/Error.cpp")
+    add_files("src/Lexer/Lexer.cpp")
+    add_files("src/Ast/Operator.cpp")
+    add_files("src/Bytecode/Disassembler.cpp")
+    add_files("src/Parser/ExprParser.cpp")
+    add_files("src/Parser/StmtParser.cpp")
+    add_files("src/Parser/TypeExprParser.cpp")
+    add_files("src/Parser/Parser.cpp")
+    add_files("src/Object/Object.cpp")
+    add_files("src/Sema/Type.cpp")
+    add_files("src/Sema/Analyzer.cpp")
+    add_files("src/Compiler/ExprCompiler.cpp")
+    add_files("src/Compiler/StmtCompiler.cpp")
+    add_files("src/Compiler/Compiler.cpp")
+    add_files("src/VM/VM.cpp")
+    add_files("src/Repl/ReplTest.cpp")
+
 target("Fig")
     add_files("src/Core/*.cpp")
     add_files("src/Token/Token.cpp")