Updates to fused epilogue (#383)

* Enhancements and fixes to fused GEMM and Convolution epilogue.
* Need to explicitly list cudart as unit test library dependency.

examples/15_ampere_sparse_tensorop_gemm/ampere_sparse_tensorop_gemm.cu

@@ -296,7 +296,7 @@ int main() {
     return -1;
   }
 
-  if (!((props.major * 10 + props.minor) >= 80)) {
+  if (props.major * 10 + props.minor < 80) {
     std::cerr << "Ampere Tensor Core operations must be run on a machine with compute capability at least 80."
               << std::endl;
     notSupported = true;