Wasm-wc: Register a new Wasm component model language module type

This is the first commit in adding WebAssembly Component Model language
module support.

This just adds a new NXT_APP_WASM_WC type, required by subsequent
commits.

The WC stands for WASI_COMPONENT

This new module will have a type of 'wasm-wasi-component'.

Link: <https://github.com/nginx/unit/issues/1098>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

src/nxt_application.h

@@ -22,6 +22,7 @@ typedef enum {
     NXT_APP_RUBY,
     NXT_APP_JAVA,
     NXT_APP_WASM,
+    NXT_APP_WASM_WC,
 
     NXT_APP_UNKNOWN,
 } nxt_app_type_t;