Add missing test files

pmd-lua/src/test/resources/net/sourceforge/pmd/lang/lua/cpd/testdata/comment.lua

@@ -0,0 +1,13 @@
+
+-- inline comment ("long comment")
+print(1 --[[, 2]])
+
+-- line comment ("short comment")
+print(1) -- comment
+
+-- inline comment with multiple lines ("long comment")
+print(1 --[[comment line 1
+comment line 2]])
+
+-- line comment without any content
+print(1) --

pmd-lua/src/test/resources/net/sourceforge/pmd/lang/lua/cpd/testdata/comment.txt

@@ -0,0 +1,23 @@
+    [Image] or [Truncated image[            Bcol      Ecol
+L3
+    [print]                                 1         5
+    [(]                                     6         6
+    [1]                                     7         7
+    [)]                                     18        18
+L6
+    [print]                                 1         5
+    [(]                                     6         6
+    [1]                                     7         7
+    [)]                                     8         8
+L9
+    [print]                                 1         5
+    [(]                                     6         6
+    [1]                                     7         7
+L10
+    [)]                                     17        17
+L13
+    [print]                                 1         5
+    [(]                                     6         6
+    [1]                                     7         7
+    [)]                                     8         8
+EOF