Overhaul kernel driver/devices module. Many other changes

Author: suhas-pai

kernel/include/acpi/bus.h

@@ -0,0 +1,8 @@
+/*
+ * kernel/include/acpi/bus.h
+ * © suhas pai
+ */
+
+#pragma once
+
+struct bus *acpi_bus();

kernel/include/acpi/device.h

@@ -0,0 +1,20 @@
+/*
+ * kernel/include/acpi/device.h
+ * © suhas pai
+ */
+
+#pragma once
+
+#include <uacpi/types.h>
+#include "lib/adt/string_view.h"
+
+#include "dev/device.h"
+#include "resources.h"
+
+struct acpi_device {
+    struct device device;
+    struct string_view name;
+
+    struct os_acpi_device_resources resources;
+    uacpi_namespace_node *node;
+};