Refactoring/ios (#300)

iOS app refactoring (native part):
- connection bugs fixed
- improved stability 
- logs from network extension

client/platforms/ios/iosglue.mm

@@ -181,16 +181,8 @@ EXPORT bool key_eq(const uint8_t key1[WG_KEY_LEN], const uint8_t key2[WG_KEY_LEN
 // Logging functions
 // -----------------
 
-#ifndef NETWORK_EXTENSION
-namespace {
-//Logger logger(LOG_IOS, "IOSSGlue");
-}
-#endif
 
 EXPORT void write_msg_to_log(const char* tag, const char* msg) {
-#ifndef NETWORK_EXTENSION
-//  logger.debug() << "Swift log - tag:" << tag << "msg: " << msg;
-#else
   os_log_with_type(OS_LOG_DEFAULT, OS_LOG_TYPE_DEBUG, "tag: %s - msg: %s", tag, msg);
 
   @autoreleasepool {