Update Barrier_All and Sync_All APIs (#72)

* Fix deadlock in `rocshmem_ctx_wg_barrier_all` API in IPC conduit by adding per-context pSync buffers and context IDs
  - Added separate pSync buffers for each device context
  - Resolved deadlock when invoking barrier API (`rocshmem_ctx_wg_barrier_all`) concurrently from multiple contexts

* Update barrier_all functional tests for multi-context support

* Add thread, wavefront, and workgroup-level barrier_all APIs in IPC and RO conduits
  - Implemented barrier_all APIs at thread, wavefront, and workgroup granularity
  - Added support in both IPC and RO conduits
  - Updated functional tests to cover all `barrier_all` APIs

* Add thread, wavefront, and workgroup-level sync_all APIs in IPC and RO conduits
  - Implemented sync_all APIs for thread, wavefront, and workgroup scopes
  - Added support into both IPC and RO conduits
  - Added functional tests to cover all `sync_all` APIs

src/stats.hpp

@@ -43,6 +43,8 @@ enum rocshmem_stats {
   NUM_QUIET,
   NUM_TO_ALL,
   NUM_BARRIER_ALL,
+  NUM_BARRIER_ALL_WAVE,
+  NUM_BARRIER_ALL_WG,
   NUM_WAIT_UNTIL,
   NUM_WAIT_UNTIL_ANY,
   NUM_WAIT_UNTIL_ALL,
@@ -70,6 +72,8 @@ enum rocshmem_stats {
   NUM_TEST,
   NUM_SHMEM_PTR,
   NUM_SYNC_ALL,
+  NUM_SYNC_ALL_WAVE,
+  NUM_SYNC_ALL_WG,
   NUM_BROADCAST,
   NUM_PUT_WG,
   NUM_PUT_NBI_WG,