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/data_files/parse_input/crl-ec-sha512.pem

@@ -0,0 +1,10 @@
+-----BEGIN X509 CRL-----
+MIIBcTCB9wIBATAKBggqhkjOPQQDBDA+MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
+UG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EXDTEzMDkyNDE2
+MzEwOFoXDTIzMDkyMjE2MzEwOFowFDASAgEKFw0xMzA5MjQxNjI4MzhaoHIwcDBu
+BgNVHSMEZzBlgBSdbSAkSQE/K8t4tRm8fiTJ2/s2fKFCpEAwPjELMAkGA1UEBhMC
+TkwxETAPBgNVBAoTCFBvbGFyU1NMMRwwGgYDVQQDExNQb2xhcnNzbCBUZXN0IEVD
+IENBggkAwUPifmJDzOgwCgYIKoZIzj0EAwQDaQAwZgIxAL/VFrDIYUECsS0rVpAy
+6zt/CqeAZ1sa/l5LTaG1XW286n2Kibipr6EpkYZNYIQILgIxAI0wb3Py1DHPWpYf
+/BFBH7C3KYq+nWTrLeEnhrjU1LzG/CiQ8lnuskya6lw/P3lJ/A==
+-----END X509 CRL-----