[Tizen] Add example app showing ml-service and rpk updates

- Add a simple app showing how to use API `ml_service_new` and
  `ml_service_request`.
- This app also demonstrate that how rpk updates can be used in AI app.

Signed-off-by: Yongjoo Ahn <[email protected]>

Tizen.native/ml-service-example/README.md

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+# Example of using ML Service APIs with RPKs
+
+## org.example.sum_and_add
+
+This app prints invoke results of `sum_and_add` model from rpk. Depend on the rpk version, the output should be different.
+
+## RPK "org.resource.model.sum_and_add" v1
+
+This RPK contains `sum_and_add` model file, `sum_and_add_one.tflite`. Made by this python script:
+
+```python
+import torch
+import ai_edge_torch
+
+class AddModelOne(torch.nn.Module):
+  def __init__(self):
+    super().__init__()
+
+  def forward(self, input_tensor):
+    output = torch.sum(input_tensor, (1)) + 1.0
+    return output # sum all value of input tensor and add 1.0
+
+sum_and_add_one = AddModelOne().eval()
+sum_and_add_one(torch.tensor([[1.0, 2.0, 3.0, 4.0]])) # output: tensor([11.])
+
+sample_inputs = (torch.randn(1, 4),) # restrict the shape of input as (1, 4)
+edge_model = ai_edge_torch.convert(sum_and_add_one, sample_inputs) # convert the model
+edge_model(torch.tensor([[1.0, 2.0, 3.0, 4.0]])) # validate the output: tensor([11.])
+edge_model.export("sum_and_add_one.tflite") # save as tflite model file
+```
+
+## RPK "org.resource.model.sum_and_add" v2
+
+This RPK contains `sum_and_add` model file, `sum_and_add_two.tflite`. Made by:
+
+```python
+class AddModelTwo(torch.nn.Module):
+  def __init__(self):
+    super().__init__()
+
+  def forward(self, input_tensor):
+    output = torch.sum(input_tensor, (1)) + 2.0
+    return output # sum all value of input tensor and add 2.0
+
+sum_and_add_two = AddModelTwo().eval()
+sum_and_add_two(torch.tensor([[1.0, 2.0, 3.0, 4.0]])) # output: tensor([12.])
+
+sample_inputs = (torch.randn(1, 4),) # restrict the shape of input as (1, 4)
+edge_model = ai_edge_torch.convert(sum_and_add_two, sample_inputs) # convert the model
+edge_model(torch.tensor([[1.0, 2.0, 3.0, 4.0]])) # validate the output: tensor([12.])
+edge_model.export("sum_and_add_two.tflite") # save as tflite model file
+```
+
+## Scenario
+
+The app `org.example.sum_and_add` uses AI defined in the RPK `org.resource.model.sum_and_add`.
+
+1. install RPK `org.resource.model.sum_and_add` V1
+
+    ```bash
+    cd sum_and_add_model_rpk_v1
+    tizen package -t rpk -- .
+    tizen install -n "./Package/org.resource.model.sum_and_add-1.0.0.rpk"
+    ```
+
+2. Install and run the app `org.example.sum_and_add`
+
+    ```bash
+    cd sum_and_add_app
+    tizen build-native -r tizen-9.0-device64.core -- .
+    tizen package -t tpk -- ./Debug
+    tizen install -n "./Debug/org.example.sum_and_add-1.0.0-aarch64.tpk"
+    tizen run -p "org.example.sum_and_add"
+    ```
+
+    ![v1](./screenshot_with_rpk_v1.png)
+
+3. Update the RPK with V2 and run the app again
+
+    ```bash
+    cd sum_and_add_model_rpk_v2
+    tizen package -t rpk -- .
+    tizen install -n "./Package/org.resource.model.sum_and_add-2.0.0.rpk"
+    tizen run -p "org.example.sum_and_add"
+    ```
+
+    The result of app is changed:
+    ![v2](./screenshot_with_rpk_v2.png)
+
+## Note
+
+The app `org.example.sum_and_add` is packaged and deployed only once. Developers can update the app's AI model with RPK update.

Tizen.native/ml-service-example/sum_and_add_app/.exportMap

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+{
+	global: main;
+	_IO_*;
+	local: *;
+};

Tizen.native/ml-service-example/sum_and_add_app/inc/sum_and_add.h

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+/**
+ * @file    sum_and_add.h
+ * @date    4 Jul 2024
+ * @brief   Tizen ML Service API example with RPK
+ * @see     https://github.com/nnstreamer/nnstreamer
+ *          https://github.com/nnstreamer/api
+ * @author  Yongjoo Ahn <[email protected]>
+ * @bug     No known bugs except for NYI items.
+ */
+
+#ifndef __sum_and_add_H__
+#define __sum_and_add_H__
+
+#include <app.h>
+#include <Elementary.h>
+#include <system_settings.h>
+#include <efl_extension.h>
+#include <dlog.h>
+
+#ifdef  LOG_TAG
+#undef  LOG_TAG
+#endif
+#define LOG_TAG "sum_and_add"
+
+#if !defined(PACKAGE)
+#define PACKAGE "org.example.sum_and_add"
+#endif
+
+#endif /* __sum_and_add_H__ */

Tizen.native/ml-service-example/sum_and_add_app/project_def.prop

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+APPNAME = sum_and_add
+
+type = app
+profile = tizeniot-9.0
+
+USER_SRCS = src/sum_and_add.c
+USER_DEFS =
+USER_INC_DIRS = inc
+USER_OBJS =
+USER_LIBS =
+USER_EDCS =