LibWasm+Everywhere: Make the instruction count limit configurable

...and enable it for LibWeb and test-wasm.
Note that `wasm` will not be limited by this.

Userland/Libraries/LibWeb/WebAssembly/WebAssemblyObject.cpp

@@ -25,6 +25,7 @@ namespace Web::Bindings {
 WebAssemblyObject::WebAssemblyObject(JS::GlobalObject& global_object)
     : Object(*global_object.object_prototype())
 {
+    s_abstract_machine.enable_instruction_count_limit();
 }
 
 void WebAssemblyObject::initialize(JS::GlobalObject& global_object)