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/Kconfig

@@ -0,0 +1,14 @@
+# Kconfig file for Tactility example app
+menu "Tactility App"
+    choice
+        prompt "Board"
+        default TT_BOARD_CUSTOM
+
+        config TT_BOARD_CUSTOM
+            bool "Custom"
+        config TT_BOARD_YELLOW_BOARD_24_CAP
+            bool "Yellow Board (2.4\" capacitive)"
+        config TT_BOARD_LILYGO_TDECK
+            bool "LilyGo T-Deck"
+    endchoice
+endmenu