start with USB CDC echo example

this is the Atmel START USB CDC Echo example project for the
SAM E54 Xplained Pro board using an Atmel ATSAME54P20A
microcontroller.
Atmel START information:
- Version: 1.4.1810 (Dec 18, 2018, 5:52 AM GMT+1)
- Server: 1.4.93
- Content version: 1.0.1340

This will serve as basis for the sysmoOCTSIM project

A jenkins contrib script has also been added to the
osmo-ccid-firmware project to build the sysmoOCTSIM firmware

Change-Id: I356de75e7b730d63fb819248e71d36f785932199
diff --git a/sysmoOCTSIM/hal/utils/include/utils_list.h b/sysmoOCTSIM/hal/utils/include/utils_list.h
new file mode 100644
index 0000000..977e8cc
--- /dev/null
+++ b/sysmoOCTSIM/hal/utils/include/utils_list.h
@@ -0,0 +1,164 @@
+/**
+ * \file
+ *
+ * \brief List declaration.
+ *
+ * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _UTILS_LIST_H_INCLUDED
+#define _UTILS_LIST_H_INCLUDED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup doc_driver_hal_utils_list
+ *
+ * @{
+ */
+
+#include <compiler.h>
+
+/**
+ * \brief List element type
+ */
+struct list_element {
+	struct list_element *next;
+};
+
+/**
+ * \brief List head type
+ */
+struct list_descriptor {
+	struct list_element *head;
+};
+
+/**
+ * \brief Reset list
+ *
+ * \param[in] list The pointer to a list descriptor
+ */
+static inline void list_reset(struct list_descriptor *const list)
+{
+	list->head = NULL;
+}
+
+/**
+ * \brief Retrieve list head
+ *
+ * \param[in] list The pointer to a list descriptor
+ *
+ * \return A pointer to the head of the given list or NULL if the list is
+ * empty
+ */
+static inline void *list_get_head(const struct list_descriptor *const list)
+{
+	return (void *)list->head;
+}
+
+/**
+ * \brief Retrieve next list head
+ *
+ * \param[in] list The pointer to a list element
+ *
+ * \return A pointer to the next list element or NULL if there is not next
+ * element
+ */
+static inline void *list_get_next_element(const void *const element)
+{
+	return element ? ((struct list_element *)element)->next : NULL;
+}
+
+/**
+ * \brief Insert an element as list head
+ *
+ * \param[in] list The pointer to a list element
+ * \param[in] element An element to insert to the given list
+ */
+void list_insert_as_head(struct list_descriptor *const list, void *const element);
+
+/**
+ * \brief Insert an element after the given list element
+ *
+ * \param[in] after An element to insert after
+ * \param[in] element Element to insert to the given list
+ */
+void list_insert_after(void *const after, void *const element);
+
+/**
+ * \brief Insert an element at list end
+ *
+ * \param[in] after An element to insert after
+ * \param[in] element Element to insert to the given list
+ */
+void list_insert_at_end(struct list_descriptor *const list, void *const element);
+
+/**
+ * \brief Check whether an element belongs to a list
+ *
+ * \param[in] list The pointer to a list
+ * \param[in] element An element to check
+ *
+ * \return The result of checking
+ * \retval true If the given element is an element of the given list
+ * \retval false Otherwise
+ */
+bool is_list_element(const struct list_descriptor *const list, const void *const element);
+
+/**
+ * \brief Removes list head
+ *
+ * This function removes the list head and sets the next element after the list
+ * head as a new list head.
+ *
+ * \param[in] list The pointer to a list
+ *
+ * \return The pointer to the new list head of NULL if the list head is NULL
+ */
+void *list_remove_head(struct list_descriptor *const list);
+
+/**
+ * \brief Removes the list element
+ *
+ * \param[in] list The pointer to a list
+ * \param[in] element An element to remove
+ *
+ * \return The result of element removing
+ * \retval true The given element is removed from the given list
+ * \retval false The given element is not an element of the given list
+ */
+bool list_delete_element(struct list_descriptor *const list, const void *const element);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _UTILS_LIST_H_INCLUDED */