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/BUGS.md

@@ -0,0 +1,20 @@
+## Known issues
+
+Known issues in Mbed TLS are [tracked on GitHub](https://github.com/Mbed-TLS/mbedtls/issues).
+
+## Reporting a bug
+
+If you think you've found a bug in Mbed TLS, please follow these steps:
+
+1. Make sure you're using the latest version of a
+   [maintained branch](BRANCHES.md): `master`, `development`,
+   or a long-time support branch.
+2. Check [GitHub](https://github.com/Mbed-TLS/mbedtls/issues) to see if
+   your issue has already been reported. If not, …
+3. If the issue is a security risk (for example: buffer overflow,
+   data leak), please report it confidentially as described in
+   [`SECURITY.md`](SECURITY.md). If not, …
+4. Please [create an issue on on GitHub](https://github.com/Mbed-TLS/mbedtls/issues).
+
+Please do not use GitHub for support questions. If you want to know
+how to do something with Mbed TLS, please see [`SUPPORT.md`](SUPPORT.md) for available documentation and support channels.