Update collective APIs naming (#77)

* Update the naming convention for collective APIs to ensure consistency across the interface.

* Move all collective API declarations to rocshmem_COLL.hpp

* The following APIs were updated as part of this change:
  - `barrier`
  - `barrier_all`
  - `sync`
  - `sync_all`
  - `all_to_all`
  - `broadcast`
  - `fcollect`
  - `all_reduce`

* Update header file generation code for collective APIs

tests/functional_tests/team_reduction_tester.cpp

@@ -35,7 +35,7 @@ __device__ int wg_team_reduce(rocshmem_ctx_t ctx, rocshmem_team_t, T *dest,
   __device__ int wg_team_reduce<T, Op>(rocshmem_ctx_t ctx,               \
                                        rocshmem_team_t team, T * dest,   \
                                        const T *source, int nreduce) {    \
-    return rocshmem_ctx_##TNAME##_##Op_API##_wg_reduce(ctx, team, dest,  \
+    return rocshmem_ctx_##TNAME##_##Op_API##_reduce_wg(ctx, team, dest,  \
                                                         source, nreduce); \
   }
 
@@ -93,7 +93,7 @@ __global__ void TeamReductionTest(int loop, int skip, long long int *start_time,
       start_time[wg_id] = wall_clock64();
     }
     wg_team_reduce<T1, T2>(ctx, team, r_buf, s_buf, size);
-    rocshmem_ctx_wg_barrier_all(ctx);
+    rocshmem_ctx_barrier_all_wg(ctx);
   }
 
   __syncthreads();