usb: Refactor USB Host tests

* USB tests migrated to pytest
* Error messages improved
* Configurable for different mock devices

components/usb/test_apps/common/test_usb_common.h

@@ -0,0 +1,26 @@
+/*
+ * SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <stdbool.h>
+#include "freertos/FreeRTOS.h"
+
+/**
+ * @brief Initialize the internal USB PHY and USB Controller for USB Host testing
+ */
+void test_usb_init_phy(void);
+
+/**
+ * @brief Deinitialize the internal USB PHY and USB Controller after USB Host testing
+ */
+void test_usb_deinit_phy(void);
+
+/**
+ * @brief For the USB PHY into the connected or disconnected state
+ *
+ * @param connected For into connected state if true, disconnected if false
+ * @param delay_ticks Delay in ticks before forcing state
+ */
+void test_usb_set_phy_state(bool connected, TickType_t delay_ticks);