Move all firmware files to subdirectory

firmware/components/fatal/fatal.c

@@ -0,0 +1,16 @@
+/*
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Copyright (c) Camden Dixie O'Brien
+ */
+
+#include "fatal.h"
+
+#include "esp_log.h"
+
+#define TAG "Fatal"
+
+void _fatal(const char *func, const char *file, unsigned line)
+{
+	ESP_LOGE(TAG, "%s() @ %s:%u", func, file, line);
+	while (1) { }
+}