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

tactility-core/CMakeLists.txt

@@ -0,0 +1,36 @@
+cmake_minimum_required(VERSION 3.16)
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+file(GLOB SOURCES "src/*.c")
+file(GLOB HEADERS "src/*.h")
+
+add_library(tactility-core OBJECT)
+target_sources(tactility-core
+    PRIVATE ${SOURCES}
+    PUBLIC ${HEADERS}
+)
+target_include_directories(tactility-core
+    PRIVATE src/
+    INTERFACE src/
+)
+
+if (DEFINED ENV{ESP_IDF_VERSION})
+    add_definitions(-DESP_PLATFORM)
+    target_link_libraries(tactility-core
+        PUBLIC mlib
+        PUBLIC idf::freertos
+        PRIVATE idf::mbedtls
+        PRIVATE idf::nvs_flash
+        PRIVATE idf::esp_hw_support
+    )
+else()
+    add_definitions(-D_Nullable=)
+    add_definitions(-D_Nonnull=)
+    target_link_libraries(tactility-core
+    	PRIVATE mlib
+    	PRIVATE mbedtls
+    	PRIVATE freertos-kernel
+    )
+endif()