examples: Standardise naming of files, symbols, etc. in examples

* Use "example" in all example function & variable names,
  ie use i2c_example_xxx instead of i2c_xxx for example functions.
  Closes #198 https://github.com/espressif/esp-idf/issues/198
* Mark example functions, etc. static
* Replace uses of "test" & "demo" with "example"
* Split the UART example into two
* Rename "main" example files to end with "_main.c" for disambiguation

examples/protocols/openssl_server/main/openssl_server_example.h

@@ -0,0 +1,33 @@
+/* OpenSSL server Example
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+
+#ifndef _OPENSSL_SERVER_H_
+#define _OPENSSL_SERVER_H_
+
+#include "sdkconfig.h"
+
+/* The examples use simple WiFi configuration that you can set via
+   'make menuconfig'.
+
+   If you'd rather not, just change the below entries to strings with
+   the config you want - ie #define EXAMPLE_WIFI_SSID "mywifissid"
+*/
+#define EXAMPLE_WIFI_SSID               CONFIG_WIFI_SSID
+#define EXAMPLE_WIFI_PASS               CONFIG_WIFI_PASSWORD
+
+#define OPENSSL_EXAMPLE_TASK_NAME        "openssl_example"
+#define OPENSSL_EXAMPLE_TASK_STACK_WORDS 10240
+#define OPENSSL_EXAMPLE_TASK_PRORIOTY    8
+
+#define OPENSSL_EXAMPLE_RECV_BUF_LEN       1024
+
+#define OPENSSL_EXAMPLE_LOCAL_TCP_PORT     443
+
+#endif
+