bindings: move some code from .h to .cpp file

src/bindings.cpp

@@ -592,3 +592,27 @@ void BindingsConfiguration::generateDefaults()
 	if (notBound(k = stringToKey("-")))
 		bind(k, Actions::Type::VolumeDown);
 }
+
+const Command *BindingsConfiguration::findCommand(const std::string &name)
+{
+	const Command *ptr = nullptr;
+	auto it = m_commands.find(name);
+	if (it != m_commands.end())
+		ptr = &it->second;
+	return ptr;
+}
+
+BindingsConfiguration::BindingIteratorPair BindingsConfiguration::get(const Key &k)
+{
+	std::pair<BindingIterator, BindingIterator> result;
+	auto it = m_bindings.find(k);
+	if (it != m_bindings.end()) {
+		result.first = it->second.begin();
+		result.second = it->second.end();
+	} else {
+		auto list_end = m_bindings.begin()->second.end();
+		result.first = list_end;
+		result.second = list_end;
+	}
+	return result;
+}