Revert "THRIFT-5501 Remove Common Lisp support"

This reverts commit d88d4f93b3390989bd47a43f3941ca7d576750f6.
diff --git a/compiler/cpp/CMakeLists.txt b/compiler/cpp/CMakeLists.txt
index 717b645..a230041 100644
--- a/compiler/cpp/CMakeLists.txt
+++ b/compiler/cpp/CMakeLists.txt
@@ -73,6 +73,7 @@
 
 # The following compiler can be enabled or disabled
 THRIFT_ADD_COMPILER(c_glib  "Enable compiler for C with Glib" ON)
+THRIFT_ADD_COMPILER(cl      "Enable compiler for Common LISP" ON)
 THRIFT_ADD_COMPILER(cpp     "Enable compiler for C++" ON)
 THRIFT_ADD_COMPILER(d       "Enable compiler for D" ON)
 THRIFT_ADD_COMPILER(dart    "Enable compiler for Dart" ON)