feat(platform/xilinx): add support for specifying application template

platform/xilinx/util.tcl

@@ -248,9 +248,22 @@ proc _update_app_build_config {app_name build_type build_config is_vitis} {
 proc _create_app {app_name app_config platform_name is_vitis} {
     set cpu [dict get $app_config target_cpu]
     set os [dict get $app_config os]
-    set lang [dict get $app_config language]
     set sources [dict get $app_config sources]
     set bsp_name "${app_name}_bsp"
+    set lang [dict get $app_config language]
+    if { $lang ne "C" && $lang ne "C++" } {
+        _error "Unsupport language" "language should be C or C++"
+    }
+    if { [dict exists $app_config template] } {
+        set template [dict get $app_config template]
+    } elseif { !$is_vitis } {
+        set template "Empty Application"
+    } elseif { $lang eq "C++" } {
+        set template "Empty Application (C++)"
+    } else {
+        set template "Empty Application(C)"
+    }
+
 
     # Configure BSP/Domain for application
     if {[dict exists $app_config bsp] && [dict get $app_config bsp] ne ""} {
@@ -280,7 +293,7 @@ proc _create_app {app_name app_config platform_name is_vitis} {
             -os $os \
             -lang $lang \
             -sysproj $::project_name \
-            -template "Empty Application($lang)"
+            -template "$template"
         _info "Application '$app_name' created for Vitis."
     } else {
         sdk createapp -name $app_name \
@@ -289,7 +302,7 @@ proc _create_app {app_name app_config platform_name is_vitis} {
             -proc $cpu \
             -os $os \
             -lang $lang \
-            -app "Empty Application"
+            -template "$template"
         _info "Application '$app_name' created for Xilinx SDK."
     }