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

[ROCm/rocshmem commit: c652f58cef]

projects/rocshmem/tests/functional_tests/sync_tester.cpp

@@ -41,15 +41,6 @@ __global__ void SyncTest(int loop, int skip, long long int *start_time,
 
     __syncthreads();
     switch (type) {
-      case SyncAllTestType:
-        /**
-        * The function `rocshmem_ctx_wg_sync_all` should be called from only
-        * one group within the grid to avoid unintended behavior.
-        */
-        if (is_block_zero_in_grid()) {
-          rocshmem_ctx_wg_sync_all(ctx);
-        }
-        break;
       case SyncTestType:
         rocshmem_ctx_wg_team_sync(ctx, teams[wg_id]);
         break;