add cmake support

CMakeLists.txt

@@ -0,0 +1,23 @@
+cmake_minimum_required(VERSION 2.8)
+project(THULAC)
+
+set(SOURCE_FILES
+    src/cb_decoder.h
+    src/cb_model.h
+    src/cb_ngram_feature.h
+    src/cb_tagging_decoder.h
+    src/cb_tagging_learner.h
+    src/dat.h
+    src/filter.h
+    src/negword.h
+    src/postprocess.h
+    src/preprocess.h
+    src/punctuation.h
+    src/thulac_base.h
+    src/thulac_character.h
+    src/thulac_raw.h
+    src/timeword.h
+    src/verbword.h)
+
+add_executable(thulac src/thulac.cc ${SOURCE_FILES})
+add_executable(train src/train_c.cc ${SOURCE_FILES})