Add tensor generators

library/include/ck/library/utility/host_tensor_generator.hpp

 // SPDX-License-Identifier: MIT
-// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
+// Copyright (c) 2018-2024, Advanced Micro Devices, Inc. All rights reserved.
 
 #pragma once
 
@@ -69,6 +69,18 @@ struct GeneratorTensor_1<ck::f8_t>
 };
 #endif
 
+template <>
+struct GeneratorTensor_1<ck::f4_t>
+{
+    float value = 1.0;
+
+    template <typename... Is>
+    ck::bhalf_t operator()(Is...)
+    {
+        return ck::type_convert<ck::f4_t>(value);
+    }
+};
+
 template <>
 struct GeneratorTensor_1<int8_t>
 {
@@ -153,6 +165,20 @@ struct GeneratorTensor_2<ck::bf8_t>
 };
 #endif
 
+template <>
+struct GeneratorTensor_2<ck::f4_t>
+{
+    int min_value = 0;
+    int max_value = 1;
+
+    template <typename... Is>
+    ck::f4_t operator()(Is...)
+    {
+        float tmp = (std::rand() % (max_value - min_value)) + min_value;
+        return ck::type_convert<ck::f4_t>(tmp);
+    }
+};
+
 template <typename T>
 struct GeneratorTensor_3
 {
@@ -223,6 +249,22 @@ struct GeneratorTensor_3<ck::bf8_t>
 };
 #endif
 
+struct GeneratorTensor_3<ck::f4_t>
+{
+    float min_value = 0;
+    float max_value = 1;
+
+    template <typename... Is>
+    ck::f4_t operator()(Is...)
+    {
+        float tmp = float(std::rand()) / float(RAND_MAX);
+
+        float fp32_tmp = min_value + tmp * (max_value - min_value);
+
+        return ck::type_convert<ck::f4_t>(fp32_tmp);
+    }
+};
+
 template <typename T>
 struct GeneratorTensor_4
 {