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

app-esp/src/board_config.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "sdkconfig.h"
+
+// Supported hardware:
+#if defined(CONFIG_TT_BOARD_LILYGO_TDECK)
+#include "lilygo_tdeck.h"
+#define TT_BOARD_HARDWARE &lilygo_tdeck
+#elif defined(CONFIG_TT_BOARD_YELLOW_BOARD_24_CAP)
+#include "yellow_board.h"
+#define TT_BOARD_HARDWARE &yellow_board_24inch_cap
+#else
+#define TT_BOARD_HARDWARE NULL
+#error Replace TT_BOARD_HARDWARE in main.c with your own. Or copy one of the ./sdkconfig.board.* files into ./sdkconfig.
+#endif