Update md files. Add cpp in docs/examples (#1769)

* Update md files. Add cpp in docs/examples

* Normalize all the line endings

* Fix block_id in snippets

* Fix utf-8 encoding

* Add new folder for snippets

* Fix issues with compiling code from snippets

* Added conteiner iterator fix

docs/snippets/protecting_model_guide.cpp

@@ -0,0 +1,22 @@
+#include <inference_engine.hpp>
+
+int main() {
+using namespace InferenceEngine;
+//! [part0]
+std::vector<uint8_t> model;
+std::vector<uint8_t> weights;
+
+// Read model files and decrypt them into temporary memory block
+decrypt_file(model_file, password, model);
+decrypt_file(weights_file, password, weights);
+//! [part0]
+
+//! [part1]
+Core core;
+// Load model from temporary memory block
+std::string strModel(model.begin(), model.end());
+CNNNetwork network = core.ReadNetwork(strModel, make_shared_blob<uint8_t>({Precision::U8, {weights.size()}, C}, weights.data()));
+//! [part1]
+
+return 0;
+}