added tests for doc2tosca

src/test_doc2tosca.py

+#!/bin/bash
+import doc2tosca as d2t
+
+def test_match_definition_incipit():
+	assert d2t.match_definition_incipit("tosca.") == True
+	assert d2t.match_definition_incipit("tosca.definitions") == True
+	assert d2t.match_definition_incipit("<node_template>") == False
+
+def  test_is_tosca_def():
+	assert False
+
+
+