Support for PC platform (#12)

* improvements for cross-platform compiling

* moved tactility-core to libs/

* splitup improvements

* remove git/gitmodules from freertos

* better platformbetter platform checks

* added build scripts

* delete mbedtls

* re-add mbedtls

* fixes and improvements

* added pc build

* simplify build scripts

* revert build scrpit

* updated builds

* fix for pc

* fix for pc

* fix for build

libs/mbedtls/tests/include/test/arguments.h

@@ -0,0 +1,26 @@
+/**
+ * \file arguments.h
+ *
+ * \brief Manipulation of test arguments.
+ *
+ * Much of the code is in host_test.function, to be migrated here later.
+ */
+
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+#ifndef TEST_ARGUMENTS_H
+#define TEST_ARGUMENTS_H
+
+#include "mbedtls/build_info.h"
+#include <stdint.h>
+#include <stdlib.h>
+
+typedef union {
+    size_t len;
+    intmax_t sint;
+} mbedtls_test_argument_t;
+
+#endif /* TEST_ARGUMENTS_H */