Add the nanobind component

Add the `nanobind` component, which is used by revng to create python
binding from C++.

Author: mrjackv

.orchestra/config/components/nanobind.yml

@@ -0,0 +1,26 @@
+#@ load("@ytt:data", "data")
+#@ load("@ytt:overlay", "overlay")
+#@ load("/lib/cmake.lib.yml", "typical_cmake_builds")
+
+---
+#@ def build_args():
+pre_configure_script: |
+  git -C "$SOURCE_DIR" submodule update --init --recursive
+configure_dir: '"$SOURCE_DIR/standalone"'
+extra_cmake_args:
+- -DBUILD_SHARED_LIBS=ON
+build_dependencies:
+- host-cxx-toolchain
+dependencies:
+- host-libcxx
+#@ end
+
+#@overlay/match by=overlay.all, expects=1
+#@overlay/match-child-defaults missing_ok=True
+---
+components:
+  nanobind:
+    license: LICENSE
+    repository: nanobind
+    builds:
+      default: #@ typical_cmake_builds(**build_args())["release"]

.orchestra/config/components/revng.yml

@@ -34,6 +34,7 @@ dependencies:
   - libarchive
   - flamegraph
   - zstd
+  - nanobind
 use_asan: false
 post_install_script: |
   if [ "$RUN_TESTS" -eq 1 ]; then

.orchestra/config/lib/cmake.lib.yml

@@ -65,6 +65,7 @@
 #@        pre_install_script="",
 #@        post_install_script="",
 #@        test=False,
+#@        configure_dir="",
 #@ ):
 
 #@ for flavor, opts in typical_cmake_flavors(use_asan=use_asan).items():
@@ -85,7 +86,11 @@
 
     cd "$BUILD_DIR";
     (@= cmake @) \
+      (@- if configure_dir: @)
+      (@= configure_dir @) \
+      (@- else: @)
       "$SOURCE_DIR" \
+      (@- end @)
       -G"(@= build_system @)" \
       (@= expand_args(cmdline_cmake_base_configuration(cmake_build_type=opts["cmake_build_type"], extra_compiler_flags=flavor_extra_compiler_flags)) @)
       (@- if extra_cmake_args: @) \