feat(lib/xtintin): 增加两个 MSLP 辅助函数

plugins/lib/xtintin/__init__.tin

@@ -15,3 +15,4 @@ load-file plugins/lib/xtintin/fp.tin;
 load-file plugins/lib/xtintin/answer.tin;
 load-file plugins/lib/xtintin/default.tin;
 load-file plugins/lib/xtintin/diff.tin;
+load-file plugins/lib/xtintin/mslp.tin;

plugins/lib/xtintin/mslp.tin

@@ -0,0 +1,11 @@
+#function {mslpExec} {
+    #local exec {%1};
+    #local text {%2};
+    #return {\e]68;1;EXEC;$exec\a\e[4m$text\e[24m};
+};
+
+#function {mslpSend} {
+    #local send {%1};
+    #local text {%2};
+    #return {\e]68;1;SEND;$send\a\e[4m$text\e[24m};
+};