Nvtx: fix recipe and add v3.2.1

[phwissmann]

Summary

Changes to recipe: *nvtx/3.2.1

Motivation

Add missing packaging of header "nvtx3/nvtx3.hpp" which is the main cpp entrypoint as described in
https://nvidia.github.io/NVTX/doxygen-cpp/index.html
Add version 3.2.1

---

• Read the contributing guidelines
• Checked that this PR is not a duplicate: list of PRs by recipe
• Tested locally with at least one configuration using a recent version of Conan

[SoShiny]

In case you want to add a test for the .hpp header being copied:

diff --git a/recipes/nvtx/all/test_package/CMakeLists.txt b/recipes/nvtx/all/test_package/CMakeLists.txt
index f9d181212..85a03bfa3 100644
--- a/recipes/nvtx/all/test_package/CMakeLists.txt
+++ b/recipes/nvtx/all/test_package/CMakeLists.txt
@@ -1,8 +1,11 @@
 cmake_minimum_required(VERSION 3.15)
-project(test_package LANGUAGES C)
+project(test_package LANGUAGES C CXX)

 find_package(nvtx REQUIRED CONFIG)

 add_executable(${PROJECT_NAME} test_package.c)
 target_link_libraries(${PROJECT_NAME} PRIVATE nvtx::nvtx)
 target_compile_features(${PROJECT_NAME} PRIVATE c_std_99)
+
+add_executable(${PROJECT_NAME}_cxx test_package.cpp)
+target_link_libraries(${PROJECT_NAME}_cxx PRIVATE nvtx::nvtx)
diff --git a/recipes/nvtx/all/test_package/conanfile.py b/recipes/nvtx/all/test_package/conanfile.py
index 0a6bc6871..c9d8782b7 100644
--- a/recipes/nvtx/all/test_package/conanfile.py
+++ b/recipes/nvtx/all/test_package/conanfile.py
@@ -24,3 +24,5 @@ class TestPackageConan(ConanFile):
         if can_run(self):
             bin_path = os.path.join(self.cpp.build.bindirs[0], "test_package")
             self.run(bin_path, env="conanrun")
+            bin_path = os.path.join(self.cpp.build.bindirs[0], "test_package_cxx")
+            self.run(bin_path, env="conanrun")
diff --git a/recipes/nvtx/all/test_package/test_package.cpp b/recipes/nvtx/all/test_package/test_package.cpp
new file mode 100644
index 000000000..bdfbec516
--- /dev/null
+++ b/recipes/nvtx/all/test_package/test_package.cpp
@@ -0,0 +1,10 @@
+#include <stdlib.h>
+#include <nvtx3/nvtx3.hpp>
+
+int main()
+{
+    nvtxInitialize(NULL);
+    nvtxRangeId_t main_range = nvtxRangeStartA("main");
+    nvtxRangeEnd(main_range);
+    return EXIT_SUCCESS;
+}

[phwissmann]

Added. Makes sense. Thanks.