rocprofv3: rocprofv3-avail tool (#15)

* support avail tool

Updating avail library and script

Listing on Std output incase the output folder is not given

Extending list metrics test

misc fix

misc fix

fixing memory leak

changing list-metrics to list-avail

fixing formatting issue

Fixing CMakeLists

Add test for list avil with trace

Fix test fail

clang tidy errors fixed

Removing build commands for rocprofv3-trigger-list

Addressing review changes

addressing review comment

moving avail to libexec

merge fix

Fix test failures

updating doc

Fix doc error

* updating legacy doc

* fix formatting issue

* Addressing review comments

source/docs/how-to/using-rocprofv3.rst

@@ -122,9 +122,9 @@ Here is the sample of commonly used ``rocprofv3`` command-line options. Some opt
     - Iteration range for each kernel that match the filter [start-stop].
     - Kernel Dispatch Counter Collection
 
-  * - ``-L`` \| ``--list-metrics``
-    - List metrics for counter collection.
-    - Kernel Dispatch Counter Collection
+  * - ``-L`` \| ``--list-avail``
+    - List metrics for counter collection 
+    - List supported PC sampling configurations.
 
   * - ``-E`` \| ``--extra_counters``
     - Specifies the path to a YAML file containing extra counter definitions.