[docs] Improve readability of ROCprofiler-SDK API library documentation (#359)

* Use custom .rst to make api doc more readable.

* Update index.rst

* Misc docs updates

- doxygen source code fixes
- updated doxygen files
- fixed conf.py (does not generate code in source tree)

* Update source/docs/api-reference/rocprofiler-sdk_api_reference.rst

Co-authored-by: Rawat, Swati <Swati.Rawat@amd.com>

* Update source/docs/api-reference/rocprofiler-sdk_api_reference.rst

Co-authored-by: Rawat, Swati <Swati.Rawat@amd.com>

* Update source/docs/api-reference/rocprofiler-sdk_api/modules.rst

Co-authored-by: Rawat, Swati <Swati.Rawat@amd.com>

* Update source/docs/api-reference/rocprofiler-sdk_api/global_data_structures_topics_files.rst

Co-authored-by: Rawat, Swati <Swati.Rawat@amd.com>

* Duplicate

* test warnings

* Update CMakeLists.txt

* Update rocprofiler-sdk.dox.in

* Update update-docs.sh

* fix docs build failures by -q -T flags.

* set warn_as_error to NO.

* test -W to suppress warnings.

* remove -q flag from make.

* reduce dot graph depth to 100

* Update custom docs target

- docs target is now no longer part of the dependency list for the all target
- installation of docs requires explicitly building the docs target (i.e. OPTIONAL install of _build/html/ folder)

* add quit and trace mode back.

* increase DOT_GRAPH_MAX_NODES to 500 back.

* Format.

---------

Co-authored-by: Venkateshwar Reddy Kandula <vkandula@amd.com>
Co-authored-by: Jonathan R. Madsen <jonathanrmadsen@gmail.com>
Co-authored-by: Bhardwaj, Gopesh <Gopesh.Bhardwaj@amd.com>
Co-authored-by: Rawat, Swati <Swati.Rawat@amd.com>
Co-authored-by: Madsen, Jonathan <Jonathan.Madsen@amd.com>

[ROCm/rocprofiler-sdk commit: 6ec9526475]

projects/rocprofiler-sdk/source/docs/index.rst

@@ -43,7 +43,7 @@ The documentation is structured as follows:
     * :doc:`Callback services <api-reference/callback_services>`
     * :doc:`Counter collection services <api-reference/counter_collection_services>`
     * :doc:`PC sampling <api-reference/pc_sampling>`
-    * :doc:`ROCprofiler-SDK API library <_doxygen/rocprofiler-sdk/html/index>`
+    * :doc:`ROCprofiler-SDK API <api-reference/rocprofiler-sdk_api_reference>`
     * :doc:`ROCTx API library <_doxygen/roctx/html/index>`
 
   .. grid-item-card:: Conceptual