Tests: Add test_microlzma to .gitignore and CMakeLists.txt.

.gitignore

@@ -67,6 +67,7 @@ coverage
 /tests/test_index
 /tests/test_index_hash
 /tests/test_lzip_decoder
+/tests/test_microlzma
 /tests/test_memlimit
 /tests/test_stream_flags
 /tests/test_vli

CMakeLists.txt

@@ -1984,6 +1984,7 @@ if(BUILD_TESTING)
         test_index_hash
         test_lzip_decoder
         test_memlimit
+        test_microlzma
         test_stream_flags
         test_vli
     )